Question
39.99% of 159.98 = ?2 – 319.99% of 12.5 –
49.98% of 129.99 What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)Solution
ATQ, 39.99% of 159.98 = ?2 – 319.99% of 12.5 – 49.98% of 129.99 40% × 160 ~ ?2 - 320 × (12.5)% - 50% × 130 ?2 ~ 64 + 320 × (1/8) + (1/2) × 130 ?2 ~ 64 + 40 + 65 ? ~ √169 ? ~ 13
In a yellow box there are 5 red, 6 green, and 4 yellow balls while in a blue box there are 3 red, 7 green, and 5 yellow balls. One ball is drawn at rand...
22 defective pens are accidentally mixed with 136 good ones. It is not possible to just look at a pen and tell whether or not it is defective. One pen i...
There are (m + 4) red roses, (m + 9) white roses and ‘m’ pink roses in a bag. If the probability of picking a pink rose is 3/10, then find t...
Tokens numbered 1 to 350 are in a bag. What is the probability that the Token drawn has a number which is a multiple of 6 or 7?
A bag contains 5 red flowers, 7 yellow flowers and 8 green flowers. 3 flowers are drawn randomly. What is the probability that the flowers drawn contain...
Two fair six-faced dice are rolled simultaneously. What is the probability that the product of the numbers obtained is divisible by 4 but not divisible ...
21 rotten bananas are accidentally mixed with 135 good ones. It is not possible to just look at a banana and tell whether or not it is rotten. One banan...
A bag has x blue balls and 4 yellow balls. If the probability of picking a blue ball is 3/5, find the probability that two balls drawn at once are of di...
A bag contains 10 red books, 7 yellow books and 7 green books . 3 books are drawn randomly. What is the probability that the...
A box contains 6 Brown and 8 Blue caps. There is another box which contains 8 Brown and 7 Blue caps. One cap is to drawn from either of the two boxes. ...
Relevant for Exams:
