Last seen: Jun 14, 2021
Let us consider, Number of days taken by women to finish the work = x Number of days taken by men to finish the work = y Work done by women in o...
Let us consider, Speed of Ritu in still water = x km/hr Speed of Stream = y km/hr Now, speed of Ritu during, Downstream = x + y km/h Upstrea...
Substituting 1/(3x+y) = m and 1/(3x-y) = n in the given equations, we get, m + n = 3/4 …………….…… (1) m/2 – n/2 = -1/8 m – n = -1/4 …………..…(2) ...
Substituting 1/x+y = m and 1/x-y = n in the given equations, we get, 10m + 2n = 4 => 10m + 2n – 4 = 0 ………………..…..(i) 15m – 5n = -2...
6x + 3y = 6xy 6/y + 3/x = 6 Let 1/x = m and 1/y = n => 6n +3m = 6 => 3m + 6n-6 = 0 …………………….(i) 2x + 4y = 5xy => 2/y + 4/x = 5 ...
(7x-2y)/ xy = 5 7/y – 2/x = 5 …………………..(i) (8x + 7y)/xy = 15 8/y + 7/x = 15 ………………(ii) Substituting 1/x = m in the given equation we get, – ...
Putting in the given equation we get, So, 4m + 3y = 14 => 4m + 3y – 14 = 0 ……………..…..(1) 3m – 4y = 23 => 3m – 4y – 23 = 0 ……………….(2) ...
Substituting 1/√x = m and 1/√y = n in the given equations, we get 2m + 3n = 2 ……………..(i) 4m – 9n = -1 ………………(ii) Multiplying equation (i) by 3,...
Let us assume 1/x = m and 1/y = n, then the equation will change as follows. m/2 + n/3 = 2 ⇒ 3m + 2n - 12 = 0…………………….(1) m/3 + n/2 = 13/6 ⇒ 2...
Let, The length of rectangle = x unit And breadth of the rectangle = y unit Now, as per the question given, (x – 5) (y + 3) = xy -9 3x – 5y ...
Let x km/h be the speed of car from point A and y km/h be the speed of car from point B. If the car travels in the same direction, 5x – 5y = 100 ...
Let the number of right answers is x and number of wrong answers be y According to the given question; 3x−y = 40 ……..(1) 4x−2y = 50 ⇒2x−y = 25...
Let the fraction be x/y. So, as per the question given, (x -1)/y = 1/3 => 3x – y = 3 …………………(1) x/(y + 8) = 1/4 => 4x –y =8 ………………....
Let x be the fixed charge and y be the charge of food per day. According to the question, x + 20y = 1000……………….. (i) x + 26y = 1180………………..(ii) ...
Calico Spinning Jenny weaving Sholapur; Madurai European Subamarekha war
(a) South India
(a) Rajasthan and Gujarat