Number System 4.78% of 1255 + 3.24% of 440=0.5% of ? 12849 11849 14849 13849 12849 11849 14849 13849 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 0.5 x ?/100 = 4.78 x 1255/100 + 3.24 x 440/100= 59.989 + 14.256∴ ? = 74.245 x 100/0.5 = 14849
Number System If 70% of an equal to 40% of b, then ratio between a and b is? 7: 4 None 7: 11 4: 7 7: 4 None 7: 11 4: 7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 70 a = 40 ba: b = 4: 7
Number System In how many different ways can the letters of the word TEST' be arranged ? 8 12 16 10 8 12 16 10 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The word TEST consists of 4 letters in which T comes twice ∴ Number of arrangements= 4!/2! = 4 x 3 x 2 x 1/2 x 1 = 12
Number System If (83)² is subtracted from the square of a number, the answer so obtained is 8487. What is the number ? 163 124 146 179 163 124 146 179 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x Therefore, x² - (83)² = 8487x² = 8487 + (83)²x² = 8487 + 6889x² = 15376Therefore, x² = 15376 x = 124
Number System 106 * 106 - 94 * 94 = ? 1906 2000 2400 1904 1906 2000 2400 1904 ANSWER DOWNLOAD EXAMIANS APP
Number System 2536+4851—?=3450+313 4567 3624 6784 5243 4567 3624 6784 5243 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3624
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