Number System The difference between 45% of a number and 18% of the same number is 145.8. What is 30% of that number ? 141 188 245 162 141 188 245 162 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 56.21 +2.36+5.41 —21.4+1.5=? 64.08 34.08 54.08 44.08 64.08 34.08 54.08 44.08 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 44.08
Number System How many numbers between 300 and 800 can be by using digits 2, 4, 5, 6 and 0 ? 52 36 56 48 52 36 56 48 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ∴ Reqd . numbers = 3 x 4P2 = 3 x 12 = 36
Number System [(18.6 x 4.5) + (7.8 ÷ 0.24)] ÷ 3.2 = ? 26.3125 36.3125 25.3125 46.3125 26.3125 36.3125 25.3125 46.3125 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 83.7 + 32.5/3.2 = 116.2/3.2 = 36.3125
Number System In how many different ways can the letters of the word 'DETERMINE' be arranged ? 62480 61480 60480 63480 62480 61480 60480 63480 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP No. of arrangements = 9! / 3! Because, E comes 3 times = 60480
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