Number System 35%of ?=242 394 487 693 542 394 487 693 542 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 693
Number System If a number is multiplied by. three-fourth of itself, the value thus obtained is 10800. What is that number ? 120 260 60 180 120 260 60 180 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 If A + B = 30 and AB = 94, What is the value of A² + B² ? 824 625 920 712 824 625 920 712 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (A + B)² = (30)² = 900A² + B² + 2AB = 900Therefore, A² + B² = 900 - 2 x 94 = 900 - 188 = 712
Number System What is 50% of 40% of Rs. 3,450? 670 640 630 690 670 640 630 690 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 40% * 3450 = 1380then, 50 % * 1380 = 690
Number System In how many different ways can the letters of the word 'FRUGAL'be arranged ? 556 515 720 660 556 515 720 660 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In FRUGAL there ae six difference letters Therefore, 6 ! = 6 x 5 x 4 x 3 x 2 x 1 = 720
Number System Complete the series : 1, 8, 27, 64, 125, 216 ..... 363 353 373 343 363 353 373 343 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 343
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