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10 × 2 – 1 = 19 19 × 3 + 1 = 58 58 × 2 – 1 = 115 115 × 3 + 1 = 346 346 × 2 – 1 = 691
A spent 25% of his monthly income on study and 62% of the remaining on rent. If amount spent on rent is Rs. 930, then find the amount spent on study
Find the rate of interest if amount after 2 years on simple interest on a capital of Rs 1000 is Rs 1200.
If A's height is 40% less than that of B, how much percent B's height is more than that of A?
...‘X’ owns 40% less pens than ‘Y’. ‘Y’ owns 50% more pens than ‘Z’. By what percentage are the pens with ‘X’ less than those with ‘Z...
The value of A’s car is depreciating by 25% every year whereas the value of his house is appreciating by 17% each year as compared to the previous yea...
A man invests 'x'% of his monthly salary of Rs. 48,000 at an interest rate of 12.5% simple interest. After 4 years, the interest earned amounts to Rs. ...
 Rakesh obtained 25% more marks than Ambuj and Suresh obtained 40% less marks than Rakesh. Marks obtained by Suresh are what percent less than marks o...
The marks obtained by A is 25% more than B, and the marks obtained by C is 140 more than the difference of the marks obtained by A and B. If C obtained ...
Raj's income is Rs. 25,000, which is 20% lower than Ram's income. Ram saves a certain amount and spends Rs. 1,750 more than what he saves. We need to d...
The population of a city is decreased by 14% in the first year and then increased by 25% in the second year. Find the population of the city at the end...