A family consists of two children, their mother and their father. The average weight of the children and mother is 50 kg. The average weight of the children and father is 52 kg. If the father's weight is 60 kg, find the mother's weight.

The average marks of 100 students was calculated as 40. Later it was discovered that one student's marks were recorded as 83 instead of 53. Find the corrected average.

In a group of 15 people, 7 can read French, 8 can read English while 3 of them can read neither of these two languages. The number of people who can read exactly one language is:

What is the value of 0.166666... + 0.333333...?

An 8-digit number 4252746B leaves remainder 0 when divided by 3. How many values of B are possible?

Seeta and Geeta go for a swim after a gap of every 2 days and every 3 days respectively. If on 1st January both of them went for a swim together, when will they go together next?

What is X in the sequence:
4, 196, 16, 144, 36, 100, 64, X?

When a runner was crossing the 12 km mark, she was informed that she had completed only 80% of the race. How many kilometers was the runner supposed to run in this event?

A and B are two heavy steel blocks. If B is placed on the top of A, the weight increases by 60%. How much weight will reduce with respect to the total weight of A and B, if B is removed from the top of A?

In an examination, A has scored 20 marks more than B. If B has scored 5% less marks than A, how much has B scored?

Rakesh had money to buy 8 mobile handsets of a specific company. But the retailer offered very good discount on that particular handset. Rakesh could buy 10 mobile handsets with the amount he had. What was the discount the retailer offered?

Raju has Rs. 9000 with him and he wants to buy a mobile handset; but he finds that he has only 75% of the amount required to buy the handset. Therefore, he borrows Rs. 2000 from a friend. Then

All members of a club went to Mumbai and stayed in a hotel. On the first day, 80% went for shopping and 50% went for sightseeing, whereas 10% took rest in the hotel. Which of the following conclusion(s) can be drawn from the above data?

1. 40% members went for shopping as well as sightseeing.

2. 20% members went for only shopping.

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Four parallel lines intersect another set of four parallel lines. How many parallelograms can be formed?

How many positive-integer triplets $\left( x,y,z \right)$ satisfy: $x + y + z = 6$ ?

Meenu's age in 2002 was one-third of Meera's age. In 2010, Meenu's age was half of Meera's age. What was Meenu's year of birth?

The ratio of a two-digit natural number to the number formed by reversing its digits is 4 : 7. How many such pairs are possible?

Consider the following statements:
1. The sum of two rational numbers is always a rational number.
2. The product of two rational numbers is always a rational number.
3. The sum of a rational number and an irrational number is always an irrational number.
Which of the statements given above is/are correct?

A freight train leaves Delhi for Mumbai at 40 km/h. Two hours later, an express train leaves Delhi on a parallel track at 60 km/h. How far from Delhi will the express train catch the freight train?

In a 1000 m race, X gives Y a 40 m start and gives Z a 64 m start. If Y and Z compete in a 1000 m race, how much start should Y give Z?

If every alternate letter of the English alphabet starting from B is written in lower case and the remaining letters are written in capital letters, how will the first month of the second half of the year be written?

Consider the following sequence that follows some arrangement: c_accaa_aa_bc_b The letters that appear in the gaps are

A joint family consists of seven members A, B, C, D, E, F and G with three females. G is a widow and sister-in-law of D's father F. B and D are siblings and A is daughter of B. C is cousin of B. Who is E?

1. Wife of F

2. Grandmother of A

3. Aunt of C

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Which year has the same calendar as that of 2009?

Mr 'X' has three children. The birthday of the first child falls on the 5th Monday of April, that of the second one falls on the 5th Thursday of November. On which day is the birthday of his third child, which falls on 20th December?

A wall clock moves 10 minutes fast in every 24 hours. The clock was set right to show the correct time at 8:00 a.m. on Monday. When the clock shows the time 6:00 p.m. on Wednesday, what is the correct time?

A solid cube is painted yellow, blue and black such that opposite faces are of same colour. The cube is then cut into 36 cubes of two different sizes such that 32 cubes are small and the other four cubes are big. None of the faces of the bigger cubes is painted blue. How many cubes have only one face painted?

Each face of a cube can be painted in black or white colours. In how many different ways can the cube be painted?

'A' started from his house and walked 20 m towards East, where his friend 'B' joined him. They together walked 10 m in the same direction. Then 'A' turned left while 'B' turned right and travelled 2 m and 8 m respectively. Again 'B' turned left to travel 4 m followed by 5 m to his right to reach his office. 'A' turned right and travelled 12 m to reach his office. What is the shortest distance between the two offices?

P, Q and Rare three towns. The distance between P and Q is 60 km, whereas the distance between P and R is 80 km. Q is in the West of P and R is in the South of P. What is the distance between Q and R?

In the sequence 1, 5, 7, 3, 5, 7, 4, 3, 5, 7, how many such 5s are there which are not immediately preceded by 3 but are immediately followed by 7?

Ena was born 4 years after her parents’ marriage. Her mother is three years younger than her father and 24 years older than Ena, who is 13 years old. At what age did Ena's father get married?

Consider the following Statements and Conclusions:

Statements-1: Some rats are cats.

Statements-2: Some cats are dogs.

Statements-3: No dog is a cow.

Conclusions-I: No cow is a cat.

Conclusions-II: No dog is a rat.

Conclusions-III: Some cats are rats.

Which of the above conclusions is/are drawn from the statements?

In a conference, out of a total 100 participants, 70 are Indians. If 60 of the total participants are vegetarian, then which of the following statements is/are correct?

1. At least 30 Indian participants are vegetarian.

2. At least 10 Indian participants are non- vegetarian.

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In a school, 60% students play cricket. A student who does not play cricket, plays football. Every football player has got a two- wheeler. Which of the following conclusions cannot be drawn from the above data?

1. 60% of the students do not have two- wheelers.

2. No cricketer has a two-wheeler.

3. Cricket players do not play football.

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