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The total surface area of a hollow cylinder is given by: TSA = 2πh(R + r) + 2π(R² - r²) Where h = 20 cm, R = 10 cm (external radius), r = 7 cm (internal radius). TSA = 2π(20)(10 + 7) + 2π(10² - 7²) = 2π(20)(17) + 2π(100 - 49) = 680π + 2π(51) = 680π + 102π = 782π cm² ≈ 782 × 3.14 ≈ 2455.48 cm² Correct Option: d
Which of the following is the third sentence of the passage?
Given below are five jumbled sentences. Select the option that gives their correct logical sequence.
A: Chandrayaan-3 will focus on the soft ...
A. The home then was a bungalow, single storied and bounded by walls.
B. He states that in the early 1950's houses in most cities relied on the b...
Select the option that arranges sentences B, C, D and E in a logical sequence.
Sentences A and F are static.
A. Destructive comments are c...
Choose the correct order.
1. He plunged in among the big spruce trees.
P. At the man's heels trotted a dog, a big native husky, the pro...
1. “Being shy and
P. flabbergasted by the
Q. reserved by nature,
R. a farmer naturally gets
S. security at the ga...
Which of the following best sums up the central idea of the paragraph formed after rearrangement?
Neither the supervisor (1)/ nor the employees is (2)/ responsible for the delay in (3)/ completing the project. (4)/ No error (5)
Directions: Sentences of a paragraph are given below in jumbled order. Arrange the sentences in the correct order to form a meaningful and coherent par...
Each question is divided into four parts a,b,c,d. In some questions they are not in the sequence so according to grammar and context re- re-arrangement...
