Mathematics MCQs
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4151.a, A₁, A₂, A₃, ..., Aₙ, b If it’s an arithmetic progression, then:
4152.What is the value of 1³ + 2³ + 3³ + ... + n³ if 1 + 2 + ... + n = 15?
4153.A number is increased by 30% and then decreased by 10%. What is the net percentage change?
4154.If tan A = √2 and tan B = 1, then?
4155.x + 1/x = 3 We need to find: x³ + 1/x³
4156.What is the value of log₃ 81?
4157.If the price of 15 books is Rs 239, what will be the price of 9 books?
4158.What is the average of: 15, 20, 30, 12, 5?
4159.What is the solution to the differential equation dy/dx = cosx?
4160.If two dice are rolled, what is the probability that the sum is a prime number whose square is also prime?