Question

if tanvi gives an interest of rs 40 for one year at 5% rate p.a. what is the sum she has borrowed?​

Answer 1

Answer:

eska answer upper paper me hai.

Answer 2

Answer:

$\\\\ 303×298 \: can \: be\: written\:as: \\=303×298 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = (300 + 3)(300 - 3) \\ \: \: \: \: \: \: ={(300)}^{2} - {(3)}^{2}\:\\= 90000 - 9 \\= 89991 \: \: \: \: \: \: \: \: \: \\ formula \: used : \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: {(a - b)}^{2} = (a + b)(a - b)$