Syntel Company Numerical Ability Permutation and Combination

From 5 different green balls, four different blue balls and three different red balls, how many combinations of balls can be chosen taking at least one green and one blue ball?

Read Solution (Total 3)

Syntel Other Question

A certain type of mixture is prepared by mixing brand A at Rs.9 a kg. with brand B at Rs.4 a kg. If the mixture is worth Rs.7 a kg., how many kgs. of brand A are needed to make 40kgs. of the mixture? A shopkeeper marks his goods 30% above the cost price and then allows 15% discount on it. What is the cost price of an article on which he gains Rs.840?

a)Rs.6400 b)Rs.8000 c)Rs.7000 d) Rs.9000