Number System What is 432 times 119 ? 52408 53408 50408 51408 52408 53408 50408 51408 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP No. 432 x 119 = 51408
Number System On multiplying a number by 7, the product is a number each of whose digits is 3. The smallest such number is: 47649 47619 47719 48619 47649 47619 47719 48619 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP By hit and trail, we find that47619 * 7 = 333333.7) 333333 (47619 333333---------------- 0
Number System 7.8 x 4.5 x 4.2/0.14 = ? 1053 1012 1032 1087 1053 1012 1032 1087 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7.8 x 4.5 x 4.2/0.14 = 1053
Number System If a + b = 16 and ab = 68, what is the value of a² + b² ? 120 112 124 116 120 112 124 116 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 63.602 + 153.756 + 94.754 - 84.321 - 122.204 = ? 141.587 140.587 143.587 142.587 141.587 140.587 143.587 142.587 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 312.112 - 170.525 = 141.587
Number System The sum of three consecutive multiples of 3 is 72. What is the largest number? 21 27 36 24 21 27 36 24 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be 3x, 3x + 3 and 3x + 6.Then,3x + (3x + 3) + (3x + 6) = 729x = 63x = 7Largest number = 3x + 6 = 27.
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