Quantitative Aptitude - Arithmetic Ability Questions

If 3x+22x+1 = a2x+1+bx+2 be an identity, then the value of b

Rearrange the jumbled up letters in their natural sequence ad find the odd one out.

If Tan A = 15/8 and Tan B = 7/24, then Cos(A - B) = ?

129 meter from the foot of a cliff on level of ground, the angle of elevation of the top of a cliff is 30°. The height of this cliff is

Calculate the simple interest if Rs. 1800 is invested for 10 years at a rate of 5% per annum.

Vinay professes to lose 4% on sugar and uses a weight of 620 gm instead of 1 kg. What is the total profit percentage?

A boy spends Rs 20 to purchase toffees at Rs 1 each. Next day, he purchased some toffees for Rs 40 with a discount of 50 paise per toffee. What is the average price per toffee (in paise)?

X attempts 94 questions and gets 141 marks. If for every correct answer 4 marks is given, and for every wrong answer 1 mark is deducted, then the number of questions wrongly answered by X is __.