Question
A shopkeeper marks his goods 50% above the cost price
but allows his customers a discount of 20% on the marked price. What is his actual profit if selling price is rupees 6000?Solution
Let the cost price be 100x. Marked price = (100 + 50) % of 100x = 150x Selling price after 20% discount = 150x × 0.8 = 120x 120x = 6000 x = 50 Profit = 120x – 100x = 20x = 1000
A team of 4 men and 2 women is to be selected out of 8 men and 4 women. If only one man and one woman remain in the team, then what will be the total nu...
In an election, a voter may vote for any number of candidates not greater than the number to be chosen. There are 8 candidates and 5 members are to be c...
A task force of 9 members is to be selected from a group of 8 male and 6 female officers. In how many ways can a task force be formed if it must contain...
From 7 experienced and 4 fresher candidates, a panel of 8 is to be made. How many ways can the panel be formed if it includes at least 6 experienced can...
A team of 6 members is to be formed from a group of 7 boys and 6 girls. Find the number of ways to form team such that the team consists of at most 3 gi...
- How many four-letter words without repetition having exactly two vowels can be formed by using the letters of the word "MONARCH"?
- From 10 musicians and 5 singers, a band of 8 members is to be formed. In how many ways can the band be formed such that there are at least 6 musicians?
In how ways can the selection be made so that a particular member is always included?
How many straight lines can be formed from 9 points out of which 4 are colinear?
In how many ways can the letters of the word ‘MEDICAL’ be rearranged so that the vowels never come together?