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Number System

Number System
√9216 + √15376 = ?

231
224
227
220

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 ?

1760
4589
2476
3289

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
Write the next number in the series : 14, 16, 13, 17, 12, 18, 11 ....

7
19
15
1

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

19

Number System
Of an amount, 20% of 25% of 30% is Rs 75. Then what is the original amount ?

Rs. 2000
Rs. 5000
Rs. 3000
Rs. 4000

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the amount be x.∴ X x 20/100 x 25/100 x 30/100 = 75∴ X = 75 x 5 x 4 x 10/3  = 5000

Number System
A certain number successively divided by 2, 5 and 7 leaves remainders 1, 2 and 3 respectively. When the same number is divided by 70, what is the remainder?

34
35
36
33

ANSWER DOWNLOAD EXAMIANS APP

Number System
ind the number, difference between number and its 3/5 is 50

124
120
125
123

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number = x,Then, x-(3/5)x = 50,=> (2/5)x = 50 => 2x = 50*5,=> x = 125

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