Question
The radius of the base of a cone is 6 cm, and its slant
height is 10 cm. What is the surface area of the cone?Solution
The surface area of a cone is given by the formula: Surface Area = πr(r + l) Substitute the values: Surface Area = 3.14 × 6 × (6 + 10) = 3.14 × 6 × 16 = 3.14 × 96 = 301.44 cm² Correct Option: c
A store offers two consecutive discounts of 12% and 8% on an item. Determine the equivalent single discount percentage.
'Q' spends 25% of his monthly income on rent, 40% on groceries, and 15% of the remaining amount on entertainment. He saves the rest of the money in a fi...
- When a number is increased by 165, it becomes 275% of its original value. Find 35% of the number.
When a train starts it is carrying 320 passengers. At the first station 12 passengers got down and 42 passengers get into the train. At the second stati...
Two candidates are contesting in an election. All votes are valid votes. A candidate who gets 38% of votes is rejected by 28,800 votes. The total numbe...
Elina allocates her total salary as follows: she pays 8% as tax, then from the remaining amount, she spends 30% on rent, 20% on education, and Rs. 4500 ...
A girl spent 12% of her monthly income on clothing. Of the remaining, she spent on travel and food in the ratio of 7:4. If the difference of the income ...
40% of employees in a company are managers and the rest are staff. 50% of managers and 75% of staff were promoted. Find the ratio of the number of manag...
A man's income was raised by 25%, which led him to increase his expenditure by 12.5%. As a result, his savings grew from Rs. 4,800 to Rs. 8,400. What is...
- If 20% of ‘m’ equals 3 times 50% of ‘n’, and ‘m’ is 85% of 600, what is the value of ‘n’?
Relevant for Exams:
