A number consists of two digits. The digits in the ten’s place is 3 times the digit in the unit’s place. If 54 is subtracted from the number the digits are reversed. The number is
The sum of the digits of a two digit number is 10. If 18 be subtracted from it the digits in the resulting number will be equal. The number is
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Three persons Mr. Roy, Mr. Paul and Mr. Singh together have R.s 51. Mr. Paul has Rs. 4 less than Mr. Roy and Mr. Singh has got Rs. 5 less than Mr. Roy. They have the money as.
One student is asked to divide a half of a number by 6 and other half by 4 and then to add the two quantities. Instead of doing so the student divides the given number by 5. If the answer is 4 short of the correct answer then the number was
Monthly incomes of two persons are in the ratio 4:5 and their monthly expenses are in the ratio 7:9. If each saves Rs. 50 per month find their monthly incomes.
The simultaneous equations 7x-3y=31, 9x-5y=41 have solutions given by
Find the fraction which is equal to 1/2 when both its numerator and denominator are increased by 2. It is equal to 3/4 when both are increased by 12.
If ?? be the roots of the equation 2x2-4x-3=0 the value of ?2+?2 is
The wages of 8 men and 6 boys amount of Rs. 33. If 4 men earn Rs. 4.50 more then 5 boys determine the wages of each man and boy.
Two numbers are such that twice the greater number exceeds twice the smaller one by 18 and 1/3 of the smaller and 1/5 of the greater number are together 21. The numbers are:
If the roots of the equation 2x2+8x-m3=0 are equal then value of m is
A number between 10 and 100 is five times the sum of its digits. If 9 be added to it the digits are reversed find the number.
Of two numbers, 1/5th of the greater is equal to 1/3rd of the smaller and their sum is 16. The numbers are:
The sum of the digits in a three digit number is 12. If the digits are reversed the number is increased by 495 but reversing only of the ten
The age of a person is twice the sum of the ages of his two sons and five years ago his age was thrice the sum of their ages. Find his present ages.
Y is older than x by 7 years 15 years back x's age was 3/4 of y's age. There present age are
A number consisting of two digits is four times the sum of its digits and if 27 be added to it the digits are reversed. The number is
If x=m is one of the solutions of the equation 2x2+5x-m=0 the possible values of m are
If the root of the equation x2-8x+m=0 exceeds the other by 4 then the value of m is
A solution of the quadratic equation (a+b-2c)x2 + (2a-b-c)x + (c+a-2b)=0 is
If one rot of 5x2+13x+p=0 be reciprocal of the other then the value of p is
If L+M+N=0 and LMN are rationales the roots of the equation (M+N-L)x2+(N+L-M)x+(L+M-N)=0 are
If p and q are the roots of x2+2x+1=0 then the values of p3+q3 becomes
148 videos|174 docs|99 tests
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148 videos|174 docs|99 tests
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