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A vendor buys 20 apples for Rs.300 and sells them at 15 for Rs.300. How many apples should be bought and sold to earn a profit of Rs.300?...

i want to ask its a real previous year question paper

its a real previous year question paper

. If the difference between compound interest, compounding annually and simple interest on a certain
sum at 10% per annum for 2 years is ₹464, then find the sum invested.

216,

how can change language

एक निश्चित कूट भाषा में, 'FONT' को ' 714' के रूप में, ‘GLUE' को ‘494' के रूप में कूटबद्ध किया जाता है। उस कूट भाषा में ‘JOKE' के लिए कूट क्या है?

216, 64, 8, 6, 4, 2, 328, 589, ......

8888
8888=1000/-
Prove it

If the simple interest on a sum of Rs.P at 5% per annum for three years is thrice the simple interest received on Rs.Q at 7% per annum for four years, then find the relation between P andQ.