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Number System

Number System
{(742)² ÷ 36} ÷ 2 = ?

421.5
423.5
420.5
422.5

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = (174 x 174/36) ÷ 2 = 841/2 = 420.5

Number System
The difference between two integers is 5. Their product is 500. Find the numbers.

20, 25
15, 20
21, 26
30, 25

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the integers be x and (x + 5). Then, x(x + 5) = 500 x2 + 5x - 500 = 0 (x + 25)(x - 20) = 0 x = 20So, the numbers are 20 and 25.

Number System
The sum of three consecutive even numbers is 252. What is the sum of the smallest and the largest numbers?

168
170
169
171

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

168

Number System
If 4 2/3 is subtracted form 10 1/2 and the difference is multiplied by 450, then what is the final answer?

2675
2725
2875
None of these

ANSWER DOWNLOAD EXAMIANS APP

Number System
If a number is multiplied by. three-fourth of itself, the value thus obtained is 10800. What is that number ?

180
60
260
120

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number be x.∴ x x 3x/4 = 10800= x² = 10800 x 4/3 = 14400∴ x = √14400 = 120

Number System
Find the least number which when divided by 35 and 11 leaves a remainder of 1 in each case.

388
386
384
391

ANSWER DOWNLOAD EXAMIANS APP
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