The simple interest on a principal amount (in ₹) is ₹378 for a period of 5 years at the rate of 9% per annum. The principal amount (in ₹) is:

Two successive discounts of 30% and 20% was offered on food items. A man paid ₹840 for the food item. The bill amount of food item (in ₹) is:

A train running at 75 km/hr crosses another train running at 30 km/hr in the same direction in 108 seconds. If the length of the fast-moving train is 950 m, then what is the length (in m) of the slow-moving train?

Evaluate: 16 + 10 ÷ 5-2×4

Two numbers are x and 4x, and their mean proportional is 456976. Find x.

The income of Raman is ₹75400. He saves 23% of his income. If his income increases by 27% and expenditure increases by 50%, then his savings will:

Find the surface area (in cm²) of a sphere whose diameter is 21 cm.

The average weight of Mahesh, Ram and Anwar is 46 kg. If the average weight of Mahesh and Ram be 39 kg and that of Ram and Anwar be 49 kg, then the weight of Ram (in kg) is:

If 2% of x = 276, then x is equal to:

Gopal sold 152 chairs and had a gain equal to the selling price of 76 chairs. What is his profit percentage?

The LCM of two numbers is 4158 and their HCF is 54. If one of the numbers is 378, what is the other number?

Manoj has ₹1224 with him. He divided it amongst his sons Anand and Anil and asked them to invest it at 4% rate of interest compounded annually. It was seen that Anand and Anil got same amount after 17 and 18 years respectively. How much (in ₹) did Manoj give to Anil?

Two trains are moving in opposite directions at speeds of 50 km/h and 110 km/h. The length of one train is 500 m. The time taken by them to cross each other is 12 seconds. The length (in m) of the other train, correct to 2 decimal places, is:

Ramesh's expenditure in January, February, March and April was ₹28,312, ₹32,252, ₹25,012 and ₹33,500, respectively. What was his average expenditure (in ₹) during these four months?

A shopkeeper bought an article for ₹500. At what price (in ₹) should he sell the article to make 26% profit?

A does half as much work as B in three-fourth of the time. If together they take 66 days to complete the work, how many days shall B alone take to do it?

Find the third proportional of 36 and 42.

Ashok has ₹1612 with him. He divided it amongst his sons Raj and Varun and asked them to invest it at 8% rate of interest compounded annually. It was seen that Raj and Varun got same amount after 15 and 16 years respectively. How much (in ₹) did Ashok give to Raj ?