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Number System

Number System
If 5/7 of a number is 145, what is 180% of that number ?

375.4
355.4
365.4
345.4

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number be x.∴ x x 5/7 = 145∴ x = 145 x 7/5 = 203Now, 203 x 180/100 = 365.4

Number System
What is 25/2% of 482 times of 183 ?

11025.75
12025.75
12025.50
11050.75

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

25/2% of [482 x 183]= 25/2% of 88206= 25/2 x 88206 / 100= 88206 / 8= 11025.75

Number System
The average of 7 consecutive even numbers A, B, C, D, E, F and G is 36. What is the product of ' C and 'E' ?

1468
1168
1292
1327

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

A + B + C + D + E + F + G/7 = 36Therefore, D = 36Therefore, C = 34,                             E = 38Therefore, Product = 34 x 38 = 1292

Number System
3√68921 = ?

51
21
41
31

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 3√68921= 3√41 x 41 x 41= 41

Number System
Find the smallest number which should be multiplied with 520 to make it a perfect square.

None of these
120
30
55

ANSWER DOWNLOAD EXAMIANS APP

Number System
In how many different ways can the letters of the word 'LEASE' be arranged ?

40
60
80
None of these

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

The world LEASE consists of 5 letters in which E comes twice ∴ 51/21 = 5x4x3x2x1/2x1 = 60

MORE MCQ ON Number System

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