App Logo

No.1 PSC Learning App

1M+ Downloads
A hall 25 metres long and 15 metres broad is surrounded by a verandah of uniform width of 3.5 metres. The cost of flooring the verandah, at 27.50 per square metre is

A9149.50

B8146.50

C9047.50

D4186.50

Answer:

C. 9047.50

Read Explanation:

Area of the verandah = (25 + 2 × 3.5) (15 + 2 × 3.5) – 25 × 15

= 32 × 22 – 25 × 15 = 704 – 375

= 329 sq.metre

Cost of flooring = 329 × 27.5

= 9047.5


Related Questions:

ഒരു ബഹുഭുജത്തിൻ്റെ ആന്തര കോണുകളുടെ തുക 1800 ആയാൽ ബഹുഭുജത്തിൻ്റെ വശങ്ങളുടെ എണ്ണം എത്ര?
ഒരു സമചതുരക്കട്ടയുടെ ഒരു വശത്തിന് 6.5 cm നീളം ആയാൽ അതിൻ്റെ വ്യാപ്തം എത്ര ?
21 cm ആരമുള്ള ഗോളത്തിന്റെ വ്യാപ്തം എത്ര?
If the ratio of the angles of a triangle is 2 : 4 : 3, then what is the sum of the smallest angle of the triangle and the largest angle of the triangle?
Four cows are tethered at four corners of a Rectangular plot of size 30x20 meters such that the adjacent cows can just reach one another. There is a small circular pond of area 45sq.m at the centre. Then the area left ungrazed is.,