Logical Reasoning — Reasoning & Mental Ability

The average of 7 numbers is 8. If a number is added to them, the average becomes 9. What is the number added accordingl…

HCF and LCM of any two whole positive numbers are 35 and 385 respectively. If a whole number is 77, what will be the se…

The four prime numbers are written in ascending order. The product of first three is 385 and the product of last three…

If a ∶ b = 2 ∶ 3; b ∶ c = 4 ∶ 5 and c ∶ d = 6 ∶ 7, then a ∶ d = ?

The average age of a woman and her daughter is 21 years. The ratio of their ages is 5 ∶ 1 respectively. What will be th…

If 12 men or 18 women can complete the harvesting of a field in 14 days, then in how many days can 8 men and 16 women c…

A mixture of liquids A and B in a jar is in the ratio of 4 ∶ 1. If 10 liters are taken out of that mixture and the same…

If the average of four consecutive odd whole numbers A, B, C, D is 42, then what is the product of B and D?

Which one of the following numbers is exactly divisible by 99?

Which of the following fractions will be the fourth if the fractions 4/5, 6/7, 9/11, and 3/8 are ordered in descending…

A person completes 2/15 th of his total journey by rail, 9/20 th by car and the remaining 10 km by walking. Accordingly…

The average of 25 results is 18. The average of the first 12 is 14 and the last 12 is 17. What is the 13th result?

In a division question, the factor is ten times the quotient and five times the remainder. If the remainder is 46, what…

The following diagram shows the percentage of engineers, laborers and managers working in a multinational company. If t…

What is the remainder when 1421 × 1423 × 1425 is divided by 12?

The radius of a circle is increased by 3%. What is the percentage increase in its area?

The average of 5, 7, 9, x, 15 is 10 and the average of 17, 8, 19, 16, x, y, 4 is 12. What is the value of y?

If 4x² - 10xy + 6y² = 0, then x : y is?

Arnav ranked 8th from the top and 39th from the bottom in a class. How many students are there in the class?

In the following question, four pairs of words are given, out of which the words of three pairs bear a certain common r…