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Number System

Number System
Find out the smallest possible number which will be divisible by 1122 as well as 153.

1366
3366
4366
2366

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

3366

Number System
The average of five consecutive even numbers, p, q, r, s and t is 40. What is the product of 'r' and 's' ?

1680
1480
1780
1580

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the numbers be x, x + 2, x + 4, x + 6, and x + 8Avg = x + x + 2 + x + 4 + x + 6 + x + 8/5 = 40Therefore, 5x + 20 = 200Therefore, x = 180/5 = 36Therefore, r = x + 4 = 40                                 s =  x + 6 = 42Therefore, Product = 1680

Number System
Difference between two numbers is 5, six times of the smaller lacks by 6 from the four times of the greater. Find the numbers?

10, 5
12, 9
11, 6
12, 7

ANSWER DOWNLOAD EXAMIANS APP

Number System
One half of a two digit number exceeds its one third by 6. What is the sum of the digits of the number?

5
9
3
7

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

x/2 – x/3 = 6=> x =63 + 6 = 9

Number System
If (83)² is subtracted from the square of a number, the answer so obtained is 8487. What is the number ?

146
179
163
124

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number be x Therefore, x² - (83)² = 8487x² = 8487 + (83)²x² = 8487 + 6889x²   = 15376Therefore, x² = 15376                    x = 124

Number System
What is the sum of all the prime numbers from 20 to 40?

120
117
118
119

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

23 + 29 + 31 + 37 = 120

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