Question
A frog wants to cross the pond. He saw 5 turtle’s
shell which can help him to reach at the end of pond. Frog can move either 1 or 2 steps at a time. Find the number of ways in which a frog can cross the river? (Frog can’t take double step from last shell).Solution
The frog needs to take 6 steps to cross the pond. He can do this in the following ways: Crossing the pond by 6-unit steps = 1 way. Crossing the pond by 4-unit steps and 1 double step = 5C1 = 5C4 = 5 ways. Crossing the pond by 2-unit steps and 2 double steps = 4C2 = 6 ways. Crossing the pond by 3 double steps = 1 way. Hence, the required number of ways = 1 + 5 + 6 + 1 = 13
Recently, the cabinet of which state has approved ‘Mob Lynching Victim Muacha Scheme’?
Who has been elected as the acting Prime Minister of Pakistan?
The term Political Party is mentioned in which of the following?
Which village of the state was selected 1st prize for the water conservation category by the Union ministry of jal shakti?
Consider the statements about INS Chennai:
1. Indian Navy recently responded to a hijacking attempt on vessel MV Lila Norfolk.
2. It is th...
Which country recently started offering preemptive bird flu vaccinations to certain workers exposed to animals, becoming the first to do so?
Consider the following statements with respect to ‘High Court’:
1.   The judges of a high court are appointed by the Governor in consulta...
What was the theme for the India Internet Governance Forum (IIGF) 2024 held in New Delhi?
In how many districts across India will the NAVYA pilot initiative be implemented initially?
Novak Djokovic clinched his US Open men's singles title for the year 2023, by defeating Daniil Medvedev in the final match . How many US Open titles has...