Number System Of an amount, 20% of 25% of 30% is Rs 75. Then what is the original amount ? Rs. 5000 Rs. 2000 Rs. 3000 Rs. 4000 Rs. 5000 Rs. 2000 Rs. 3000 Rs. 4000 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the amount be x.∴ X x 20/100 x 25/100 x 30/100 = 75∴ X = 75 x 5 x 4 x 10/3 = 5000
Number System The difference between 45% of a number and 18% of the same number is 145.8. What is 30% of that number ? 245 141 188 162 245 141 188 162 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.45% of x - 18% of x = 145.8∴ x/100 (45 - 18) = 145.8∴ x = 145.8 x 100/27 = 540∴ 30% of 540 = 540 x 30/100 = 162
Number System Sum of two consecutive even terms lacks by 98 from their product. Find the sum of these number None 24 32 18 None 24 32 18 ANSWER DOWNLOAD EXAMIANS APP
Number System The sum of two numbers is 25 and their difference is 13. Find their product. 114 104 325 315 114 104 325 315 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x and y. Then x + y = 25 and x - y = 13.x = 19; y = 6xy = 19 * 6 = 114
Number System How many numbers between 300 and 800 can be by using digits 2, 4, 5, 6 and 0 ? 36 56 48 52 36 56 48 52 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ∴ Reqd . numbers = 3 x 4P2 = 3 x 12 = 36
Number System 64% of 2650+40% 0f 320=? 1247 1824 1578 2096 1247 1824 1578 2096 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1824
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