Interactive conceptual questions, diagrams, and step-by-step solutions across Science, Mathematics, Environmental Studies, Social Studies, and English.
Marking pattern: +1.00 positive, 0.00 negative marking.
The LCM of two numbers is $60$ and their HCF is $5$. If one of the numbers is $20$, what is the other number?
What is the HCF of $24$, $36$, and $60$?
Which of the following pairs of numbers are co-prime numbers?
What is the greatest number that divides both $38$ and $53$ leaving a remainder of $3$ in each case?
What is the HCF of the fractional numbers $\frac{2}{3}$ and $\frac{4}{9}$?
A student visually represents two fractions using the shaded grids shown below. What is the HCF of the two shaded fractions?
Find the LCM of the three fractions $\frac{2}{5}$, $\frac{3}{10}$, and $\frac{4}{15}$.
The HCF and LCM of two numbers is $6$ and $864$ respectively. If one number is $96$, find the other number.
Find the HCF of two numbers whose product is $2160$ and whose LCM is $180$.
Find the greatest number which can divide $54$, $72$, and $90$ exactly.
A shopkeeper sold identical notebooks for $₹48$, $₹72$, and $₹96$ on three consecutive days. What is the maximum possible price of each notebook?
Find the smallest number which is exactly divisible by $6$, $15$, and $18$.
Three school bells toll at intervals of $10$, $15$, and $30$ minutes respectively. If they all toll together at $8{:}00\text{ a.m.}$, at what time will they next toll together?
What is the value of the addition: $3.45 + 12.8$?
Evaluate the subtraction: $25.6 - 8.35$.
Calculate the product: $0.08 \times 0.7$.
What is the quotient when $4.32$ is divided by $100$?
A number line is shown with equal decimal intervals between $0\text{ (zero)}$ and $1$. What is the result of $3$ jumps of size $0.2$, ending at point $K$?
What is the quotient of $15.6 \div 0.3$?
A tailor cuts $8$ identical ribbons from a single ribbon roll measuring $18.4\text{ m}$. What is the length of each ribbon?
Evaluate the expression: $50 - 14.78$.
What is the total sum of $7.08 + 14.6 + 0.352$?
Find the value of $100 - 37.46$.
What is the product when $12.35$ is multiplied by $1000$?
A rectangular plot of garden has dimensions shown below. What is the area of the garden in square metres?