Question

If, Principal = Rs. 6200 Simple Interest = Rs. 5022 Number of years = 9 Rate of interest =

Answer 1

ɢɪᴠᴇɴ:

ᴘ= ʀs. 6200

sɪ= ʀs. 5022

ᴛ=9 ʏᴇᴀʀs

ᴛᴏ ғɪɴᴅ:

ʀ=?

sᴏʟᴜᴛɪᴏɴ:

$r = \frac{si \times 100}{p \times t}$

$r = \frac{5022 \times 100}{6200 \times 9}$

» ʀᴇᴅᴜᴄᴇ ᴛʜᴇ ғʀᴀᴄᴛɪᴏɴ ᴡɪᴛʜ 9

$r = \frac{558 \times 100}{6200}$

» ʀᴇᴅᴜᴄᴇ ᴛʜᴇ ғʀᴀᴄᴛɪᴏɴ ᴡɪᴛʜ 10

$r = \frac{558}{62}$

» ʀᴇᴅᴜᴄᴇ ᴛʜᴇ ғʀᴀᴄᴛɪᴏɴ ᴡɪᴛʜ 62

$= 9$

ʜᴇɴᴄᴇ, ʀᴀᴛᴇ ᴏғ ɪɴᴛᴇʀᴇsᴛ ɪs 9%