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Start learning 50% faster. Sign in nowLet the radius of the circle = ‘r’ cm Circumference of the circle = 2πr 55 = 2 × (22/7) × r r = 8.75 Radius of the circle = 8.75 cm Length of the rectangle = 8.75 × 8 = 70 cm Breadth of the rectangle = (70/7) × 8 = 80 cm Area of the rectangle = 70 × 80 = 5600 cm2
The average of 8 consecutive odd numbers is 20. If the odd numbers immediately before and after this sequence of 8 odd numbers ar...
Find the mean of the following observations:
45, 54, 42, 56, 46, 48, 52, 50, 57, 43
The average weight of a group of five persons, A, B, C, D, and E is 67 kg. If another person K joins the group then the average weight of the group is d...
The average expenditure of Mr. Sharma for January to June is Rs. 4200 and he spent Rs. 1200 in January and Rs. 1500 in July. The average expenditure for...
The average age of 24 children and their teacher's age are 21 years. If the teacher's age is excluded, the average reduces by 1. What is the teacher's age?
A student has two types of markers: Marker A priced at $3 each and Marker B priced at $5 each. If the student purchases a total of 12 markers, with an a...
A student's average score across five subjects is 72. If the scores in four subjects are 68, 75, 70, and 80, what is the average of the top three highes...
A group of people contains men, women, and children. If 40% of them are men, 35% are women, and the rest are children, and their average weights are 70 ...
