Number System The simplest form of 1.5 : 2.5 is : 5 : 7 17 : 19 3 : 5 13 : 11 5 : 7 17 : 19 3 : 5 13 : 11 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3 : 5
Number System The difference between a two-digit number and the number obtained by interchange the two digits of the number is 27. If the sum of the two digits of the number is 13, what is their product ? 39 37 38 40 39 37 38 40 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be 10x + y.∴ 10x + y - (10y + x) = 27or 9x - 9y = 27∴ x - y = 3 .......(I)x + y = 13 .......(II)From eqn (I) and (II)x = 8 and y = 5.So the number = 85Therefore, product = 8 x 5 = 40
Number System (12.04 x 7.5 + 0.8 x 45) ÷ 3 = ? 42.6 45 54.7 42.1 42.6 45 54.7 42.1 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (90.3 + 36) ÷ 3 = 126.3/3 = 42.1
Number System Three times the first of three consecutive odd integers is 3 more than twice the third. The third integer is: 9 11 13 15 9 11 13 15 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the three integers be x, x + 2 and x+ 4.Then,3x = 2(x + 4) + 3x = 11Third integer = x + 4 = 15.
Number System A certain number when divided by 45 leaves a remainder 31, what is the remainder if the same number be divided by 15? 9 11 1 13 9 11 1 13 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 45 + 31 = 76/15 = 1 (Remainder)
Number System What is 50% of 40% of Rs. 3,450? 630 640 670 690 630 640 670 690 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 40% * 3450 = 1380then, 50 % * 1380 = 690
EXAMIANS