Practice30Create account

In the street grid shown, how many shortest routes are there from A to B?

Competition practicePermutations & Combinations
  • A70
  • B21
  • C35
  • D12

Step-by-Step Solution

Every shortest route uses 4 moves right and 3 up, 7 moves in all. Choose which 3 are "up": .
Answer: C) 35

Master this topic in 30 minutes a day.

Don't just memorise the answer — build a daily practice habit.

Practice 5 Similar Questions Free →

All Permutations & Combinations practice questions

More Permutations & Combinations practice

A committee of 4 is to be formed from 5 men and 3 women. In how many ways can it be…In how many ways can the letters of PLANET be arranged so that the two vowels are always…A bag has the balls shown in the figure. In how many ways can 2 balls of different…In how many ways can 5 boys and 3 girls stand in a row if the 3 girls must stand together?From 8 people, a group of 3 is selected. Two of them, Asha and Bela, refuse to be in the…