Advertisements
Advertisements
प्रश्न
A’s income is 25% more than B’s. Find, B’s income is how much percent less than A’s.
उत्तर
Let B's income = Rs.100
then A's income = 100 + 25
= Rs.125
Now, difference of income of A and B
= Rs.(125 - 100)
= Rs.25
If A's income is Rs.125, then B's income less than A = Rs.25
If A's income is Rs1, the B's income less than A
= Rs.`(25)/(125)`
If A's income is rs.100, then B's income less than A
= Rs. `(25/125 xx 100)`
= `(1)/(5) xx 100`
= Rs.20
∴ B's income is less than A's income = 20%
APPEARS IN
संबंधित प्रश्न
Find the number a, if \[\frac{1}{2} %\] of a is 50
Evaluate : 55% of 160 + 24% of 50 – 36% of 150
Increase 180 by 25%.
Express the following as percent: `2/3`
What percent is: 16 hours of 2 days?
Find the value of the following:
90% of 130
Only one-fifth of water is available in liquid form. This limited amount of water is replenished and used by man recurrently. Express this information as percent, showing:
(i) water available in liquid form.
(ii) water available in frozen form.
By weight, 90% of tomato and 78% of potato is water. Find the weight of water in 25 kg of tomato.
The salary of Mr. Sahni is ₹ 8,400 per month, which is now decreased by 8%. Find his new salary per month.
Sunscreens block harmful ultraviolet (UV) rays produced by the sun. Each sunscreen has a Sun Protection Factor (SPF) that tells you how many minutes you can stay in the sun before you receive one minute of burning UV rays. For example, if you apply sunscreen with SPF 15, you get 1 minute of UV rays for every 15 minutes you stay in the sun.
A label on a sunscreen with SPF 30 claims that the sunscreen blocks about 97% of harmful UV rays. Assuming the SPF factor is accurate, is this claim true? Explain.