Number System If (182)² is added to the square of a number, the answer so obtained is 47765. What is the number ? 121 101 131 111 121 101 131 111 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be xTherefore x² + (182)² = 47765Therefore x² = 47765 - (182)2 = 47765 - 33124Therefore x² = 14641, Therefore x = 121
Number System What is 846 times 323 ? 273258 283298 264258 293798 273258 283298 264258 293798 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 846 x 323 = 273258
Number System If a + b = 16 and ab = 68, what is the value of a² + b² ? 116 120 112 124 116 120 112 124 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 A shopkeeper purchased 200 bulbs for Rs. 10 each. However, 5 bulbs were fused and had to be thrown away. The remaining were sold at Rs. 12 each. What will be percentage profit? 14 33 21 17 14 33 21 17 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 12
Number System 1089/? = ?/1296 1082 1188 1278 1348 1082 1188 1278 1348 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 1089 x 1296(?)²= (11 x 11 x 9) x (12 x 12 x 9)(?)= 11 x 12 x 9= 1188
Number System 93296 - 45874 + 20382 - 56817 = ? 109867 109857 109877 109887 109867 109857 109877 109887 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 113678 - 102691 = 109887
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