Quantitative Aptitude - Arithmetic Ability Questions

If a+1b=1 and b+1c=1 , then the value of c+1a is

Find the value of 777777?

If cosec∅+sin∅cosec∅-sin∅=53 then the value of sin∅is equal to

Rs. x invested at 8% simple interest per annum for 5 years yields the same interest as that on Rs. y invested at 7.5% simple interest per annum for 6years. Find x : y.

Deepti bought a set of cups for Rs. 175, but then had to sell it later to clear old stocks for Rs. 161. What is the percentage of loss that she had to incur?

If 192 pens cost is Rs.10, how many pens can be bought for Rs.5?

Six years ago, the ratio of the two persons P and Q was 3 : 2. Four years hence the ratio of their ages will be 8 : 7. What is P's age?

If 4(4x + 5) > 2x - 1 > 4x - 3, then the value of x is