Quantitative Aptitude - Arithmetic Ability Questions

84% of a number is 105. The number is :

Δ DEF is right angled at E. If m∠F = 45, then what is the value of Sin F x Tan F?

A shopkeeper offers 2.5% discount on cash purchases . What cash amount would Rohit pay for a cycle , the marked price of which is Rs.3600 ?

If the rice is sold at Rs 56 per kg, there would be a 40% loss. To earn a profit of 20% what should be the price of rice (per kg)?

If tanA - cotA = x, then value of x is?

Complete the analogy 3 : 11 :: 7 : ___

A boy found the answer for the question "Subtract the sum of 1/4 and 1/5 from unity and express the answer in decimals" as 0.45. The percentage of error in his answer was

If 15% of x is three times of 10% of y, then x:y =