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TSA of 1/8th of a sphere

32. In triangle ABC, AB=AC, ⎳BAC=32° if
BC=CD=EC then find⎳BED
?

ramu sells milk to customer at no profit one day the customer demads 20%extra milk at same price and ramu mixes some mineral water in the milk. the ratio of price/litre for mil and mineral water is 2:1. in what ratio should ramu mix milk and water such that he now makes a profit of 20%

gk hindi Kaise hoga

If ‘M' means ‘‘’’, ‘R’ means ‘+’, ‘T’ means ‘—’ and ‘K’ means ‘x’ , then - 20 R 16 K 5 M 10 T 8 = ?

Plz send the Simple intrest basic formula

An alloy A is formed by mixing copper and nickel in the ratio 1:2,by weight and another alloy B is formed by mixing nickel and zinc in the ratio 3:4, by weight. If a third alloy C is formed by mixing the alloy Aand B IN CERTAIN ratio such that the ratio of copper and zinc in C is 5:6,by weight,then what fraction by weight of the alloy is nickel.

cost of two watches were in a ratio of 16:23. At present the cost of first watch increased by 1/10 th and that of the second by Rs. 477.Now the ratio of their cost becomes 11:20. what were the initial prices of the two watches?

wether the MAT June 2020 exam will postponeor not

Air contains by volume 4 parts of nitrogen and 1 part of Oxygen. if the weights of equal volumes of Nitrogen and oxygen are in the ratio 7:8 then find the ratio between the weights of Nitrogen and oxygen in air