Question
Solution
Total number of students = 15 + 13 + 10 + 14 + 12 + 6 ⇒ Total number of students = 70 Students in class interval 160-170 = 10 + 14 = 24 Percentage of students in class interval 160-170 = (24/Total students) × 100 ⇒ Percentage of students in class interval 160-170 = (24/70) × 100 = 34.28 ∴ The percentage of students whose height is in the class interval of 160-170 is 34% (correct to the nearest integer)
Sum of all positive integers from 1 to 100 is
Raj scored 140 marks in a test getting 3 marks for each right answer and losing 1 mark for each wrong answer, had 4 marks been awarded for each correct...
A number, when divided by 64, leaves a remainder of 47. What will be the remainder when it is divided by 16?
A number leaves a remainder of 12 when divided by 19. What will be the remainder when three times that number is divided by 19?
Sum of squares of three consecutive numbers is 1325. Find the sum of first and third number.
Find the unit digit of the expression: 3! + 4! + 5! + 6! + ........ + 1111!.
What least number should be subtracted from 5612 to make it exactly divisible by 25?
Find the least 4-digit number which, when divided by 18, 30, and 45, leaves a remainder of 2 in each case.
Find the number of factors in 1750.
Relevant for Exams:
