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Number System

Number System
486+32×25—59=?

596
567
528
582

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

528

Number System
√9216 + √15376 = ?

227
231
220
224

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = √9216 + √15376= 96 + 124= 220

Number System
The average of five consecutive even numbers A, B, C, D and E is 42. What is the product of B and D ?

3289
1760
4589
2476

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

A + B + C + D + E/5 = 42∴ C = 42,   ∴ B = 40,  ∴ D = 44∴ B x D = 40 x 44 = 1760

Number System
√207.36 = ?

14.4
15.7
12.3
16.7

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

√207.36 = √20736/√100 = 144/10 = 14.4

Number System
56.21 +2.36+5.41 —21.4+1.5=?

34.08
64.08
44.08
54.08

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

44.08

Number System
The product of two consecutive odd numbers is 6723. Find is the greater number.

85
77
83
80

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the first odd number be x.Then, the other odd number would be x + 2.∴ x(x+2) = 6723= x2 + 2x = 6723= x2 + 2x = 6723= x2 + 2x - 6723 = 0= x2 + 83 - 81 x - 6723 = 0= x(x+83) - 81 (x + 83) = 0= (x + 83) (x - 81) = 0= (x + 83) (x - 81) = 0= x - 81 = 0∴ x = 81Hence, greater number = x + 2 = 81 + 2 = 83

MORE MCQ ON Number System

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