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Let the expenses of per student per week= Rs. x Hence, total expenditure of 220 students per week = Rs. 220x According to the question, 220x – 800 = (220 – 20 ) × (x + 1) 220x – 800 = 200x + 200 220x - 200x = 200 + 800 x = 50 Initial expenditure of mess weekly= 50 × 220 = Rs. 11,000
Calculate the difference between the area of a wall having dimension 22 cm X 23 cm and the area of a spherical bowl having diameter 14cm.
Determine the number of factors of 360.
How many 3-digit numbers are divisible by 6 or 9?
Three numbers are given, where one-third of the first number, two-fifths of the second number, and three-fourths of the third number are all equal. The ...
How many pairs of letters are there in the word “HELICOPTER” each of which have as many letters between them in the word as they have between them i...
The sentence below has a word in which the letters are jumbled up. Rearrange the letters of that word, written in capital letters, to form the correct w...
The average of x numbers is 24. If 60% of these numbers are reduced by 5 and the remaining 40% are increased by 10, what will be the new average of th...
If x + 1/x = 2 then find x32 + 1/(x32)
A plastic toy costs ₹7. A plastic spoon costs ₹5. X spends ₹38 on these plastic items. Find the number of plastic toys he/she purchased?
Find the greatest 3-digit number that is divisible by both 8 and 60.
