there are 7 children standing in the line,not all of whom have the same number of cakes with them.if the first child distributes his cakes to the remaining 6 children such that he doubles their respective no. of cakes,then he will be left with four cakes.instead,if the 2 child takes away 2 cakes from each of the remaining 6 children,then he will be left with 2 cakes less than the no. of cakes that the first child initially had.what is the total no. of cakes that are there with the third child to the seventh child? 11141215
10 cakes?
Let the children from 1st to 7th have x1,x2,x3,x4,x5,x6,x7 no. of cakes initially.
a teacher asked a student to add nine 2-digit no. such that each no. is 10 more than the previous no. but the student has added all the no.,which are formed by interchanging the digits of each of the given no.surprisingly,the sum he got was the same as the sum the teacher has asked for.which of the following is the difference of the digits in the least of the no. the student was asked to add? a) 2 b) 3 c)4d) 5
Let first be "ab", which is 10*a+b. The others are 10*(a+1)+b, 10*(a+2)+b, ...10*(a+8)+b
The sum should be 10*a+b + 10*(a+1)+b...10*(a+8)+b = 90a+10*(0+1+...8)+9b => 90a+9b+360
The incorrectly done sum is 10b+a + 10b+(a+1) + 10b+(a+8) => 90b + 9a + 36
So 90a+9b+360=90b+9a+36 81a+324=81b a+4=b
This leads to solutions (a,b) => (1,5),(2,6),(3,7),(4,8), and (5,9)
But since we need 9 2 digit numbers spaced at 10 each, smallest number will be 15
a teacher asked a student to add nine 2-digit no. such that each no. is 10 more than the previous no. but the student has added all the no.,which are formed by interchanging the digits of each of the given no.surprisingly,the sum he got was the same as the sum the teacher has asked for.which of the following is the difference of the digits in the least of the no. the student was asked to add? a) 2 b) 3 c)4d) 5
4. 10+20+...+90 gives 450. And 50*9=450. So if the second digit is 5, it satisfies the condition.
there are 7 children standing in the line,not all of whom have the same number of cakes with them.if the first child distributes his cakes to the remaining 6 children such that he doubles their respective no. of cakes,then he will be left with four cakes.instead,if the 2 child takes away 2 cakes from each of the remaining 6 children,then he will be left with 2 cakes less than the no. of cakes that the first child initially had.what is the total no. of cakes that are there with the third child to the seventh child? 11141215
a teacher asked a student to add nine 2-digit no. such that each no. is 10 more than the previous no. but the student has added all the no.,which are formed by interchanging the digits of each of the given no.surprisingly,the sum he got was the same as the sum the teacher has asked for.which of the following is the difference of the digits in the least of the no. the student was asked to add? a) 2 b) 3 c)4d) 5
there are 7 children standing in the line,not all of whom have the same number of cakes with them.if the first child distributes his cakes to the remaining 6 children such that he doubles their respective no. of cakes,then he will be left with four cakes.instead,if the 2 child takes away 2 cakes from each of the remaining 6 children,then he will be left with 2 cakes less than the no. of cakes that the first child initially had.what is the total no. of cakes that are there with the third child to the seventh child? 11141215
a teacher asked a student to add nine 2-digit no. such that each no. is 10 more than the previous no. but the student has added all the no.,which are formed by interchanging the digits of each of the given no.surprisingly,the sum he got was the same as the sum the teacher has asked for.which of the following is the difference of the digits in the least of the no. the student was asked to add? a) 2 b) 3 c)4d) 5
bhai what does this mean ? unable to understand language
ek Q ...In an over 7 runs were scored..only 0,1,2,3,4,6 runs on a ball are possible.what is the probability of atleast one dot ball(0 rum) by the batsmen.
