For the following questions answer them individually
A seller professes to sell his grapes at cost price but still gains $$11\frac{1}{9}\%$$ by using faulty weight . What weight does he use instead of 1 kg ?
If $$30 + 180 \div 30 \times 6 - 15 - 16 - 60 \div n - 15 = 0$$, then the value of n is:
The LCM of 30, 36 and 40 is divided by 10. The result is X's square. Find the value of X
Find the percentage concentration of wine in the wine-water solution having the ratio of 7 : 1 respectively.
A certain sum becomes ₹26,980 in 3years and ₹40,280 in 8 years at simple interest.
Find the rate of interest.
A child aged 8 years is weighs 20 kg. By the time the child is 15 years old, he weighs 42 kg. What is the percent increase in the weight?
A solid metallic sphere of radius 21 cm is melted and moulded into small right circular cones, each of radius 7 cm and height of 3 cm. The number of such cones is:
If 6 men can complete a work in 4 days and 3 women can complete the same work in 7 days, then find the time taken to complete same work by 8 men and 3 women.
Which of the following ratios is the greatest?
$$\frac{3}{4}, \frac{1}{2}, \frac{7}{8}$$ and $$\frac{5}{6}$$
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