EASY
Stage 1 & 2
IMPORTANT
Earn 100

A family has husband, wife and three children A, B and C. The present age of husband is 5 years more than the wife's present age. Wife's present ae is twice the present age of A. The present age of A is 12 years more than the present age of B. B's present age is112  times the present age of C. If C is 12 years old at present, what is the age of husband's friend Ram who is 15 years younger than husband(him)?

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Important Questions on Mathematical Operations & Arithmetical Reasoning

EASY
Stage 1 & 2
IMPORTANT
Mental Ability for NTSE Stage 1 & 2 Class 10>Chapter 8 - Mathematical Operations & Arithmetical Reasoning>EXERCISE - 2>Q 26
In a showroom, 60 percent discount is given to everybody on all articles. The successive discount of 40 percent is offered to the female students. If printed price of an article of ₹1000/- is bought by female student to pay for the article?
EASY
Stage 1 & 2
IMPORTANT
Mental Ability for NTSE Stage 1 & 2 Class 10>Chapter 8 - Mathematical Operations & Arithmetical Reasoning>EXERCISE - 2>Q 27
A person needs to find the fastest two horses from 16 horse. Only a race of 4 horses can be conducted at a time. What is  the minimum number of races to be conducted to determine the fastest two? Assume that horses will not get tired at all, and time cannot be measured.
EASY
Stage 1 & 2
IMPORTANT
Mental Ability for NTSE Stage 1 & 2 Class 10>Chapter 8 - Mathematical Operations & Arithmetical Reasoning>EXERCISE - 2>Q 28
A work is expected to be completed by 20 workers in 25 days. The work is started by 10 workers. Then, after every 5 days, 5 more workers join the work. In how many days the work will be completed?
EASY
Stage 1 & 2
IMPORTANT
Mental Ability for NTSE Stage 1 & 2 Class 10>Chapter 8 - Mathematical Operations & Arithmetical Reasoning>EXERCISE - 2>Q 29
Find the maximum length of a rod with negligible thickness which can be fitted into a cubical bo of 1 meter length of each side.
EASY
Stage 1 & 2
IMPORTANT
Mental Ability for NTSE Stage 1 & 2 Class 10>Chapter 8 - Mathematical Operations & Arithmetical Reasoning>EXERCISE - 2>Q 30

What is the total number of circles in the figure given below?

Question Image

EASY
Stage 1 & 2
IMPORTANT
Mental Ability for NTSE Stage 1 & 2 Class 10>Chapter 8 - Mathematical Operations & Arithmetical Reasoning>EXERCISE - 2>Q 31
In how many ways can you distribute 10 identical balls into two non-identical boxes so that none are empty ?
EASY
Stage 1 & 2
IMPORTANT
Mental Ability for NTSE Stage 1 & 2 Class 10>Chapter 8 - Mathematical Operations & Arithmetical Reasoning>EXERCISE - 2>Q 32
x is an integer such that it leaves the remainder of 2 when divided by 3, leaves the remainder of 3 when divided by 5 and leaves the remainder of 5 when divided by 7. What would be the possible value of x from among the following option. 
EASY
Stage 1 & 2
IMPORTANT
Mental Ability for NTSE Stage 1 & 2 Class 10>Chapter 8 - Mathematical Operations & Arithmetical Reasoning>EXERCISE - 2>Q 33
A bucket contains milk mixed with water, of which 3 parts are water and 5 parts are milk. A part of mixture is removed from the bucket and is replaced by water. What portion of mixture should have been removed so that the new mix contains milk and water in equal proportion?