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Number System

Number System
The square root of 0.0081 is:

0.009
0.91
0.9
0.09

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

0.09

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

54.08
44.08
34.08
64.08

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

44.08

Number System
The product of two consecutive odd numbers is 4623. What is the product of the next two consecutive odd numbers ?

7745
8795
6782
5183

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

√4623 = 6767 x 69 = 4623∴ Required product = 71 x 73                               = 5183

Number System
Two numbers have a H.C.F of 16 and a product of two numbers is 2560. Find the L.C.M of the two numbers?

170
160
150
140

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

L.C.M of two numbers is given by(Product of the two numbers) / (H.C.F of the two numbers) = 2560/16 = 160.

Number System
7589 - ? = 3434

4242
4155
1123
11023

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let 7589 - x = 3434Then x = 7589 - 3434 = 4155

Number System
(3² x 4² x 5) ÷ 36 = (?)² - 80

10
16
12
14

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

(?)² = 3² x 4² x 5/36 + 80= 20 + 80 = 100∴ ? = √100 = 10

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