Number System The square root of 0.0081 is: 0.91 0.9 0.09 0.009 0.91 0.9 0.09 0.009 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 0.09
Number System If the numerator of a fraction is decreased by 12.5% and the denominator is increased by 180% the resultant fraction is 1/2. What is the original fraction ? 3/5 7/5 1/5 8/5 3/5 7/5 1/5 8/5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the original fraction be x/y.∴ x x 87.5/100/y x 280/100 = 1/2or 87.5x/280y = 1/2∴ 175x = 280y∴ x/y = 280/175 = 8/5
Number System In how many different ways can the letters of the word TEST' be arranged ? 10 16 8 12 10 16 8 12 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 1827÷ 36 x ?=162.4 4.3 2.6 3.2 1.9 4.3 2.6 3.2 1.9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3.2
Number System The average age of seven boys sitting in a row facing North is 26 years. If the average age of first three boys is 19 years and the average age of last three boys is 32 years, what is the age of the b 30 years 29 years 31 years 28 years 30 years 29 years 31 years 28 years ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Age of the fourth boy = (26 x 7 - 3 x 19 - 3 x 32) years = (182 - 57 - 96) years = 29 years
Number System How many words can be made using the letters of the word "BHAG WADGITA" if all the vowels come together and all the consonants come together ? 10160 20160 30160 40160 10160 20160 30160 40160 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP No. of words = l2 l4 l7 / l3 l2 = 20160
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