TCS Company Logical Reasoning General Mental Ability

Find the value of ā€œnā€ where 3^48 + 3^1996 + 3^3943+3^3n.

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TCS Other Question

Aishwarya want to celebrate her birthday with her friends. She had 74 choco sticks with her, she wants one choco stick for her and also want to distribute to her friends. How many ways she can do this?
a) 4
b) 2
c) 37
d) 74
A Samsung duo and a Galaxy are bought for Rs.40000. The Duo is sold at a profit of 33.33% and the Galaxy is sold at a loss of 20%. There was no loss or gain. Find the cost price of the Samsung duo ?