in a class the ration of number of boys to girls is 7:3.Each boy is given only a 50 paise coin and each girl is given a 75 paise coin.The difference in the amount present with boys and girls is 3.75.how many coins should boys and girls exchange so that amount with boys become twice the amount with the girls.
|7*x*.50 - 3*y*.75| = 3.75
|3.5x - 2.25y| = 3.75
|0.7x-0.45y| = .75
or |70x-45y|=75
or |14x-9y|=15
so x=y=3
now rest can be done with options... (don't feel like solving 😞 )
in a class the ration of number of boys to girls is 7:3.Each boy is given only a 50 paise coin and each girl is given a 75 paise coin.The difference in the amount present with boys and girls is 3.75.how many coins should boys and girls exchange so that amount with boys become twice the amount with the girls.
in a class the ration of number of boys to girls is 7:3.Each boy is given only a 50 paise coin and each girl is given a 75 paise coin.The difference in the amount present with boys and girls is 3.75.how many coins should boys and girls exchange so that amount with boys become twice the amount with the girls.
let there r only 7 boys and 3 girls if we distribute 50 paise and 75 paise respectively we get a difference of 1.25 rs but v should get difference of 3.75 so trible the number =>30 people of which 21 b and 9 g money distributed 10.5 and 6.75 with coins 21 and 9 respectively.rest can be done through options
HCF=2^4*3^2*5*7 LCM=2^10*3^5*5^2*7*11*13 let the numbers be N1= 2^x1*3^x2*5^x3*7*11^x4*13^x5 N2= 2^y1*3^y2*5^y3*7*11^y4*13^y5 (x1,y1)=(4,10) or(10,4)=2 similar for (x2,y2) (x3,y3)
let there r only 7 boys and 3 girls if we distribute 50 paise and 75 paise respectively we get a difference of 1.25 rs but v should get difference of 3.75 so trible the number =>30 people of which 21 b and 9 g money distributed 10.5 and 6.75 with coins 21 and 9 respectively.rest can be done through options
itna to aa gya tha mera iske baad hi ka to puchna tha distribute nhi ho pa rahe mera 3 aa raha he...lekin galat hai..options 1 2 3 4 5:(
in a class the ration of number of boys to girls is 7:3.Each boy is given only a 50 paise coin and each girl is given a 75 paise coin.The difference in the amount present with boys and girls is 3.75.how many coins should boys and girls exchange so that amount with boys become twice the amount with the girls.
in a class the ration of number of boys to girls is 7:3.Each boy is given only a 50 paise coin and each girl is given a 75 paise coin.The difference in the amount present with boys and girls is 3.75.how many coins should boys and girls exchange so that amount with boys become twice the amount with the girls.
7x and 3x 7x/2 -9x/4=3.75 1.25x=3.75 x=3 21 boys and 9 girls boys have 10.5rs girls have 6.75rs total money 17.25 it has to be distributed in the ratio 2:1 2/3 *17.25 =11.5 1/3*17.25 =5.75 girls have to reduce 1rs by giving .75 paisa coin and taking .50 coin a reduction of .25 is made total =1/.25=4
In a right angle triangle, right angled at B, the angle subtended by AB at the in-center is 110*, If D is the midpoint of the hypotenuse, find the measure of angle BDC.
