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12 × 2 - 1² = 23 23 × 3 - 2² = 65 65 × 4 - 3² = 251 251 × 5 - 4² = 1239 1239 × 6 - 5² = 7409
A man invested all his current month income in starting of a new business in which he spends 40% in advertisement 25% of remaining in furniture 20% of r...
The price of a laptop undergoes two consecutive changes over two months. In the first month, its price decreases by 10%, followed by an increase of 20% ...
The weight of two persons Vishwas and Vivek are in the ratio 5:7. If the weights are increased in such a way that Vivek’s weight is increased by 2...
A person spent 23% of his monthly income on food and 40% of the remaining on rent. If amount spent on rent is Rs 770, then find the amount spent ...
If 64% of (P - Q) is equal to 20% of 80% of (P + Q), then find the value of Q:P.
There are 100 students in a particular class. 60% students play cricket, 25 % play football and 15% play both the games. What is the number of students ...
Initially, a person spends 70% of his salary and saves the remaining 30%. If his salary increases by 20% and his savings remain unchanged, he finds hims...
Radha purchase 6 black and some white balloons. The price of Black balloon is 5/2 of the price of the price of white balloon. At the time of making the ...
In a train, 45% of the passengers are females. Out of total number of passengers, 65% have unreserved tickets out of which 18% are females. How much per...