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Number System

Number System
A certain number of two digits is three times the sum of its digits. If 45 be added to it, the digits are reversed. The number is:

30
24
22
27

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27

Number System
√343 = ?

19
18
20
21

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? = √343 = 18

Number System
217 * 217 + 183 * 183 = ?

80698
81268
79698
80578

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Number System
Simplify the 121 * 175 + 363 * 275

None of these
363000
316600
328100

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

121 * 175 + 363 * 275 => 121 * 175 + 121 * 3 * 275121 * 175 + 121 * 825= 121 * (175 + 825) = 121000

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' ?

1327
1468
1292
1168

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
2536+4851—?=3450+313

6784
3624
4567
5243

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

3624

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