Number System The simplest form of 1.5 : 2.5 is : 17 : 19 5 : 7 3 : 5 13 : 11 17 : 19 5 : 7 3 : 5 13 : 11 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3 : 5
Number System What is the difference between the local values of 3 in the number 53403? 3003 2997 3030 0 3003 2997 3030 0 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3000 – 3 = 2997
Number System 4550 ÷ 25% of ? = 130 125 135 130 140 125 135 130 140 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 4550 ÷ ? x 25/100 = 130= 4550 ÷ ?/4 = 130= 4550 x 4/? = 130= ? x 130 = 4550 x 4= ? = 4550 x 4/130 = 140
Number System One-eighth of a number is 76. What will be 54% of the number ? 332.32 321.32 318.32 328.32 332.32 321.32 318.32 328.32 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be x Therefore, 1/8 of x = 76Therefore, x = 60854% of 608 = 608 x 54/100 = 328.32
Number System A basket contains 5 blue, 4 green and 3 red ball. If three balls are picked at random, what is the probability that at least one is red ? 31/58 32/51 37/52 34/55 31/58 32/51 37/52 34/55 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Probability of having no red ball is9C3 / 12C3 = 21/55Probability of having at least one red ball is 1 - 21/55 = 34/55
Number System What is the difference between the local value of 7 and 5 in the number 2574? 403 430 413 570 403 430 413 570 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 500 – 70 = 430
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