Question
What is the total number of students in a college?
I. In the college 25% of the students are between 17 to 22 years of age, and 40% of the remaining are above 28 years of age group. II. Ratio between the students of age group between 17 to 22 years and between 22 to 28 years is 4 : 5. III. The ratio of teachers to students in the college is 1 : 50 Each of the questions below consists of a question and three statements numbered I, II and III given below it. You have to decide whether the data provided in all the three statements are sufficient to answer the question. Read all the statements and give answer –Solution
All these statements even together are not sufficient to answer the question because neither the number of students nor the number of teachers is given. Also, we don’t have the number of students of any age group.
Sum of digits of a two-digit number is 9. When 27 is subtracted from the number, its digits get interchanged. Find the original number.
Find the sum of the first 15 natural numbers.
- Find the remainder when the number (289n + 119) is divided by 17.
Find the sum of the first 10 natural numbers.
If the 6-digit number '5a1897' is divisible by '11', determine the value of 'a'.
A waiter income consist of his salary and tips. During one week his tips were 4/5 of his salary. What portion of his income came from tips?
Christina spends half of her salary and saves the other half. If she spends ₹ 40,000 monthly, what is her annual savings?
If '3849x' is a five digit number which is divisible by 91, then find the value of 'x'.
- What should be subtracted from 64 and 40 to make the ratio of resulting numbers 3:1?
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