NUMBER SYSTEM : Quantitative Aptitude series-8

Welcome to Coaching Genie's series-8 of Quantitative Aptitude. The Best free IBPS PO Clerk coaching.

This is a series on NUMBER SYSTEM.

71.The smallest number, which when subtracted from the sum of squares of 12 and 14 gives a perfect square, is
a)6
b)18
c)24
d)16
e)8

Ans. 12 + 14² = 340
while 18² = 324
so the difference 340 - 324 = 16

 

NUMBER SYSTEM : Quantitative Aptitude series-7

Welcome to Coaching Genie's series-7 of Quantitative Aptitude. The Best free IBPS PO Clerk coaching.

This is a series on NUMBER SYSTEM

61.A number whose third part increased by 4 is equal to its second part diminished by 6. Find the number.
a)35
b)24
c)45
d)60
e)72

Ans. Let the required number be X
Then X/3 + 4 = X/2 - 6
ie 10 = X/2 - X/3
60 =  3X - 2X
X = 60.