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Number System

Number System
1089/? = ?/1296

1348
1082
1278
1188

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

(?)² = 1089 x 1296(?)²= (11 x 11 x 9) x (12 x 12 x 9)(?)= 11 x 12 x 9= 1188

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?

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

ANSWER DOWNLOAD EXAMIANS APP

Number System
2536+4851—?=3450+313

4567
3624
6784
5243

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

3624

Number System
5525 ÷ 17 = √?

112225
99225
93025
105625

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

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

Number System
Two numbers are in the ratio 3:5. If 9 be subtracted from each, they are in the ratio of 9:17. The first number is:

30
18
27
36

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

(3x-9):(5x-9) = 9:17 x = 12 => 3x = 36

Number System
If the L.C.M of two numbers is 750 and their product is 18750, find the H.C.F of the numbers.

25
125
50
30

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

H.C.F = (Product of the numbers) / (Their L.C.M) = 18750/750 = 25.

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