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A chemist hasone solution which is 50% acid and a solution 25% acid.how much of should be mixed to get the 40% of acid???how can it be proved
how is soil conserved
'There is a need for sustainable practices in agriculture and animal husbandry'. justify this statement.
A body thrown in the vertically upward direction rises up to the height h and comes back to the position of its start.calculate a)total distance traveled by the body b)displacement of the body
what is vaporization? what is evaporation? what is difference between vaporization and evaporation?
In a right angled triangle,PQR,angle Q=90 degree if a)PQ=9 cm;QR=40cm and find PR b)PR=37cm;PQ=12cm,find QR
Find the least square number exactly divisible by each of the number:7,16,21.
Find the least number of 5 digits which is a perfect square.
Find the square root by prime factorization. a)11025 b)8469 c)17956
One angle of a triangle is equal to the sum of other two.If the ratio of other two angles are 7:8.Find the angles of the triangles.
The angles of triangle are 3x,(2x+20) and (5x-40).Find the angles.
Three consecutive integers are such that when they are taken in increasing order and multiplied by 3,4,5 respectively,they add up to 386.Find these numbers.
Femina's mother is 22 years younger than Femina's grand mother and 27 years older than Femina.The sum of their ages are 121 years.Find Their present ages.
The sum of 5 consecutive odd numbers is 135.Find the numbers.
The denominator of a fraction is 7 more than the numerator.If 1 is added to the numerator and 6 is added to the denominator,the value of the fraction will be 1/2.Find the numerator and denominator. Sorry again i sent the question wrong.
WHERE IS THE CHAPTAR REGARDING CLOTHS?
Mother's age is 6 times Amal's age and grandmother's age is twice mother's age.After 5 years the sum of their ages will be 120 years.Find their present.
Ameen's age is one fifth of his father's age.after 6 years his age will be one third ofhis father's age.how old are they now.
The length of a rectangle is 7cm more than its breadth,if the perimeter is 62cm.Find the length and breadth.
The ratio of two numbers is 2:3.If both the numbers are increased by 8 their ratio becomes 10:13.Find the number.