Divide Rs 2,100 among P, Q and R, so that P shall receive 3/7 as much as Q and R together, and Q 2/3 of what P and R together receive. Find the share of Q.
Let P receives Rs x P = 3/7(Q+R ) ⇒ x = 3/7(Q+R ) ⇒ 7/3 x = Q + R & we know that P+Q+R = 2100 So x + 7/3 x = 2,100⇒ 10/3 x = 2,100 ∴x = Rs 630 Now, 7/3 x = Q + R ⇒ 7/3 ×630= Rs 1,470 ∴ Q + R = Rs 1,470………………. .(i) Q = 2/3 (P+R )⇒ Q = 2/3 (630+R) ⇒ 3 Q = 1,260 + 2 R ∴ 3Q – 2R = Rs 1,260…………………… (ii) Solving (i) and (ii) , we get Q’ share = Rs 840 ALTERNATE SHORTCUT METHOD: Q = 2/3 (P+R ) OR P+R = 3/2Q ---(i) & we know that P+Q+R = 2100 ---(ii) So putting equation (i) in (ii), Q+ 3/2Q = 2100 Or 5/2Q = 2100 or Q = 2100/5×2=840
She stops by the (A)/corner store to pick up a few things(B)/ and gives a much-deserved scold (C)/to a young kid caught shoplifting (D).
The present impasse between China and India, is a flare in of a long- standing eczema that is the result of incessant border scratching.
Brimstone is easily burned without any extraneous help; (A)/indeed the only precaution required is (B)/to take care lest the heat produced by (C)/the bu...
Find the appropriate ERROR
Identify the segment in the sentence, which contains the grammatical error
Nikhil is more braver than Sushant who is afraid of the dark.
Media is Running agenda-driven debates and Kangaroo Courts, those are not healthy for democracy.
National Guard teams have been sent to help overwhelmed hospitals (A)/in western New York, and Massachusetts Governor Charlie Baker issued (B)/an emerge...
1.Agood leader is one whom presence is barely known or felt.
2.Who is a good leader?
3. Hierarchies are necessary and we cannot function i...
Parts of the following sentence are given as options. Identify the segment that contains a grammatical error.
A confluence is a place when two ...
I. U.S President Elect Joe Biden announced additional members (A)/ of the White House communications and press team (B)/ on Friday including India-bo...