Advertisements
Advertisements
प्रश्न
800 kg of mortar consists of 55% sand, 33% cement and rest lime. What is the mass of lime in mortar?
उत्तर
We have,
Percentage of sand in mortar = 55%
Percentage of cement in mortar = 33%
So, percentage of lime in mortar = 100 – 55 – 33 = 100 – 88 = 12%
∴ Weight of mortar = 800 kg
∴ Mass of lime in mortar = 12% of 800 kg
= `12/100 xx 800`
= 12 × 8
= 96 kg
Hence, weight of lime in mortar is 96 kg.
APPEARS IN
संबंधित प्रश्न
Express the following as decimal fractions:
0.25%
Find: 25% of Rs 1000
In the new budget, the price of petrol rose by 10%. By how much percent must one reduce the consumption so that the expenditure does not increase?
Two numbers are respectively 30 percent and 40 percent less than a third number. What percent is the second of the first?
Express the following as percent: 0.125
The salary of a man is ₹ 7,200 per month, which is now increased by 8%. Find his new salary per month.
Find the percentage change from the first quantity to the second:
₹ 80, ₹ 120
Evaluate:
8% of 900 – 12% of 750 + 20% of 165.
A number is increased by 25% and then decreased by 20%. Find the percentage change in that number
250 cm is 4% of 1 km.
