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Number System

Number System
What is 432 times 119 ?

51408
52408
50408
53408

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

No. 432 x 119 = 51408

Number System
If the three fourth of a number is subtracted from the number; the value so, obtained is 163. What is that number ?

689
652
692
678

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Number x (1 - 3/4) = 163∴ Number = 163 x 4 = 652

Number System
What is the sum of all the numbers between 300 and 1000 which are divisible by 179?

2517
2607
2527
2506

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

358/179 ….. 895/179179(2 + 3 + 4 + 5) => 2506

Number System
732.96 + 405.38 - 604.08 - 105.44 + 222.86 = ?

621.68
651.68
631.68
641.68

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 1361.20 - 709.52 = 651.68

Number System
If a + b = 16 and ab = 68, what is the value of a² + b² ?

116
120
112
124

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

a + b = 16 Therefore, (a+b)² = (16)² = 256                    a² + b² + 2ab = 256Therefore,        a² + b² = 256 - 2 x 68Therefore, a² + b² = 256 - 136 = 120

Number System
The product of two consecutive odd numbers is 6723. Find is the greater number.

85
83
80
77

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the first odd number be x.Then, the other odd number would be x + 2.∴ x(x+2) = 6723= x2 + 2x = 6723= x2 + 2x = 6723= x2 + 2x - 6723 = 0= x2 + 83 - 81 x - 6723 = 0= x(x+83) - 81 (x + 83) = 0= (x + 83) (x - 81) = 0= (x + 83) (x - 81) = 0= x - 81 = 0∴ x = 81Hence, greater number = x + 2 = 81 + 2 = 83

MORE MCQ ON Number System

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