Number System Supply the missing figure : 1, 4, 9, 16, 25 .... 49 36 42 23 16 36 42 23 16 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 36
Number System The average of 7 numbers is 15, that of the first three is 6 and that of the last three is 23. What is the fourth number? 13 18 7 15 13 18 7 15 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 4th No. = (Total of 7 Nos) - (Total of first three + total of last 3) = (15 x 7) - (6 x 3 + 23 x 3) = 105 - (18 + 69) =105 - 87 = 18
Number System (2560 x 1.4) +(7400 x 0.6) =? 6543 7234 8024 9160 6543 7234 8024 9160 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8024
Number System What is 50% of 40% of Rs. 3,450? 640 690 630 670 640 690 630 670 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 40% * 3450 = 1380then, 50 % * 1380 = 690
Number System How many numbers between 300 and 800 can be by using digits 2, 4, 5, 6 and 0 ? 48 52 36 56 48 52 36 56 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ∴ Reqd . numbers = 3 x 4P2 = 3 x 12 = 36
Number System In a two-digit number, the digit in unit's place is two more than three times the digit in ten's place. If the sum of the two digits is 10, what is the number ? 18 24 28 22 18 24 28 22 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be 10x + y.∴ y = 3x + 2 .......(i)And, x + y = 10 ......(ii)From (i) and (ii), x = 2, y = 8∴ Number = 28
EXAMIANS