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Number System

Number System
{3√4913}² = ?

333
225
289
121

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = (3√4913)² = (17)² = 289

Number System
Sum of two numbers is 15. Two times of the first exceeds by 5 from the three times of the other. Then the numbers will be?

10, 5
7, 8
6, 9
9, 6

ANSWER DOWNLOAD EXAMIANS APP

Number System
83250÷?=74×25

38
59
21
45

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

45

Number System
5525 ÷ 17 = √?

99225
105625
93025
112225

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

√? = 5525/17 = 325∴ ? = (325)² = 105625

Number System
What is the least number to be subtracted from 696 to make it a perfect square?

16
20
71
1

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

The numbers less than 696 and are squares of certain numbers are 676, 625.The least number that should be subtracted from 696 to make it perfect square = 696 - 676 = 20.

Number System
The difference between 8% of a number and 3% of the same number is 39. What is 2.8% of that number ?

25.84
21.84
24.84
27.84

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number be x.∴ x(8 - 3)% = 39x = 3900/5 = 780∴ 2.8% of 780= 780 x 2.8/100 = 21.84

MORE MCQ ON Number System

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