ii) Now treat the problem as 427×789. This is a normal multiplication problem.
You will get the answer 336903. Since you have three digits in the decimal part,
put the decimal point before the last three places at the right side of the multiplied
value.
The answer is 336.903.
iii) Finding the percentage value through fraction procedures :
Example : 75% of 542.- Convert 75% into a fraction. It is 10075 = 43. Here the numerator is 3 and
the denominator 4. - Set the values in the abacus as in the case of fraction multiplication. That
is, set the value 3 in the left extreme and the value 4 in the right extreme of
the abacus. - Since this is a problem of fraction multiplication, the number 542 can also
be treated as a fraction. You can treat this number as^5421 , where 542 is the
numerator and 1 is the denominator. - Multiply 542 with 3 (both numerators) and multiply 4 with 1.
- The values will be 1626 and 4 respectively. Treat the number 1626 as dividend
and 4 as the divisor. Divide now. - The answer is 406.5. That is, 75% of 542 is 406.5.
EXERCISE- 5.2% of 176 6. 70% of 1234
- 54.3% of 543 7. 88.9% of 329
- 3.54% of 112 8. 10.1% of 311
- 45% of 232 9. 48.2% of 1018
- 25% of 5464 10. 32.32% of 245