Number System Thrice the square of a natural number decreased by 4 times the number is equal to 50 more than the number. The number is: 5 4 10 6 5 4 10 6 ANSWER DOWNLOAD EXAMIANS APP
Number System The sum of the squares of three numbers is 138, while the sum of their products taken two at a time is 131. Their sum is: 30 20 None of these 40 30 20 None of these 40 ANSWER DOWNLOAD EXAMIANS APP
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 ? 34/55 31/58 32/51 37/52 34/55 31/58 32/51 37/52 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 Which one of the following numbers is exactly divisible by 11? 245642 235641 415624 315624 245642 235641 415624 315624 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (4 + 5 + 2) - (1 + 6 + 3) = 1, not divisible by 11.(2 + 6 + 4) - (4 + 5 + 2) = 1, not divisible by 11.(4 + 6 + 1) - (2 + 5 + 3) = 1, not divisible by 11.(4 + 6 + 1) - (2 + 5 + 4) = 0. So, 415624 is divisible by 11.
Number System Write the next number in the series : 14, 16, 13, 17, 12, 18, 11 .... 7 1 15 19 7 1 15 19 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 19
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 ? 20160 40160 10160 30160 20160 40160 10160 30160 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP No. of words = l2 l4 l7 / l3 l2 = 20160
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