Question
Calculate the plant population of maize in 6000 m²
area, if it is sown at a spacing of 60cm × 25 cmSolution
No. of plants = ( Area (m2)×100×100)/(Spacing (cm2)) No. of plants/ plants population= 6000×100×100/60×25 = 40,000 plants
Let A be a 3 × 3 matrix such that |A ∣ =4. Then ∣ adj(adj(A)) ∣ equals:
The total income of 'X', 'Y', and 'Z' is Rs. 21000. They spend 85%, 80%, and 75% of their incomes, and the ratio of their savings is 4:5:6. Calculate th...
A cone has a base radius of 7 cm and a slant height of 25 cm. Find the total surface area of the cone.
25% of X = 50% of Y. If 40% of Y =120, calculate 75% of X.
Determine the single equivalent discount of two successive discounts of 12% each?
Pipe ‘X’ can fill a tank in 20 hours while pipe ‘Y’ can empty it in 24 hours. They were operated alternately starting with pipe ‘X’. Find th...
A sum of money becomes ₹7800 after 3 years and ₹8500 after 4 years at simple interest. What is the principal amount?
A businessman bought goods for Rs 1050 and sold them on the same day for Rs 1228.5 on credit for 10 months, thus earning a profit of 4%. Find the rate o...
If log₅(x + 125) – log₅ x = 2, find x.
Two pipes A and B can fill a tank in 12 hours and 16 hours, respectively. A third pipe C can empty the tank in 24 hours. If all three pipes are opened t...