Start learning 50% faster. Sign in now
Let the radius and height of the cylinder be r and h cm respectively. ∴ h = 1.20r Total surface area of the cylinder = 2710.4 = 2πr(h + r) ∴ 2710.4 = 2πr(1.2r + r) = 2πr(2.2r) = 4.4πr2 ∴ 2710.4 = (8.8/2) × (22/7) × r2 = 2710.4 x 7 x 2/22 x 8.8 ∴ r2 = 196 ∴ r = 14 and h = 16.8 Amount of water displaced = Volume of the right circular cylinder = πr2h = (22/7) × (14)2 × (16.8) = 10348.8 cm³
The marks scored by a boy in three subjects are in the ratio 2 : 3 : 4. Boy scored an overall aggregate of 75% in the exam. If the maximum marks in each...
Anita has some money left after spending 20%, 10% and 30% of monthly salary on rent, electricity and shopping respectively. The remaining money with Ani...
In a hotel, the monthly usage of Mixed Spices is 8 kg, and the cost per kilogram of Mixed Spices is Rs. 'a'. If the price per kilogram increases by
If X = 75% of Y and Y = 125% of Z, then find the ratio of X to that of Z.
Rajesh spent 48% of his monthly income on food and 52% of the remaining of study. If total monthly savings (after spending on food and study) of Rajesh ...
The number of boys and girls in a school is 220 and 300 respectively. 15% of boys left the school while 30 girls took admission in the school. Find the ...
Monthly savings of ‘A’ is Rs. 1500 more than his monthly expenditure and his total monthly income is Rs. 4100. If his monthly income is increased by...
Gaurav spends 25% of his salary on grocery and 35% of the remaining amount on electricity bills. If Gaurav saves Rs. 33637.5, what is his total salary?