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Number System

Number System
What least number shall be added to 4700 to make it a perfect square ?

91
71
61
81

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

(69)² = 4761 and (68)² = 4624Clerly 4624 < 4700 < 4761So 61 should be added to make 4700 a perfect square.

Number System
Which choice provides the answer in the following : If 2 * 3 = 36, 5 * 4 = 400, 6 * 2 = 144, 3 * 3 = 81; then, 5 * 5 = ?

625
525
425
325

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

625

Number System
Find the smallest number which when divided by 13 and 16 leaves respective remainders of 2 and 5.

219
187
207
197

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let 'N' is the smallest number which divided by 13 and 16 leaves respective remainders of 2 and 5.Required number = (LCM of 13 and 16) - (common difference of divisors and remainders) = (208) - (11) = 197.

Number System
3251 + 587 + 369 - ? = 3007

1375
1300
1200
1250

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let 4207 - x = 3007 Then, x = 4207 - 3007 = 1200

Number System
What is the sum of all even numbers from 1 to 701?

122500
122550
123850
122850

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

700/2 = 350350 * 351 = 122850

Number System
124, 235, 447, 760, 1174, ?

1689
1589
1489
1389

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

+111, +212, +313, +414

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