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Area of the circular field = π × radius2 = (22/7) × 21 × 21 = 1386 m2 Area of the rectangular piece of land = length × breadth = 20 × 30 = 600 m2 So, difference in area = 1386 – 600 = 786 m2
Out of 650 students in school, 20% students like samosa only and 30% students like samosa and momos both. If 40% students don’t like any snacks then f...
A student multiplied a number by 8/5 instead of 5/8. What is the percentage error in the calculation?
A salesman is allowed 24% commission on the total sales by him and a bonus of 1% on the sales over Rs. 25000. If the total earnings of a salesman is Rs....
The marks scored by a boy in three subjects are in the ratio 4 : 5 : 3. Boy scored an overall aggregate of 80% in the exam. If the maximum marks in each...
A no. is multiplied by 35 instead of being multiplied by 53. What % is the result of the required correct value?
The income of a person is Rs.13000 and his expenditure is Rs.8000. In the next year his income and expenditure is increased by 10% and 20% respectively....
A chair is sold for Rs 720 after giving a discount of 10% on its marked price. The cost price of the chair is Rs 640. If it is sold at the marked price,...
Sam started with 275 chocolates, and Jim had 35 chocolates more than Sam. Each consumed a portion of their chocolates—Sam ate 20% of his, and Jim ate ...
"Aman scored 220 marks and missed the passing mark by 44 marks. If Priya secured 330 marks, then by what percentage are Priya's m...
P gave 60% of the amount he had to Q. Q gave 2/7th of that amount to R. After paying Rs.250 to the shopkeeper out of the amount he gets from ...
