According to the question, 30 × 11 = 15 × 8 + (15 + x) × 6 Or, 15 + x = (330 – 120) ÷ 6 Or, 15 + x = 35 Or, x = 20
There are 10 members in a delegation which is to be sent at SAARC summit. The total number of members is 18. In how many ways can the selection be made ...
In how many different ways can the letters of the word ‘CURIOES’ be arranged in such a way that the vowels occupy only the odd positions?
From 6 officers and 8 Jawans, in how many ways can 5 be chosen to include exactly 3 officers?
In how many different ways can 6 boys and 3 girls to be seated in a row such that all the boys seated together and all the girls seated together?
In how many ways can the letters of the word ‘MEDICAL’ be rearranged so that the vowels never come together?
In how many ways can 12 girls be seated in a row of 50 seats so that no girl sits on the adjacent seat?
In a group of 9 boys and 6 girls, 5 students have to be selected. In how many ways it can be done so that only 2 boys are included.
A bag contains 4 violet, 2 grey and 6 black pullovers. 3 pullovers are chosen at random. What is the probability that at least 2 pullovers chosen will b...
How many digits are required to number a book containing 300 pages?
Akshay has 7 relatives, 3 males and 4 females. His wife twinkle also have 7 relatives, 3 females and 4 males. In how many ways can they invite 3 male an...
