Question
To represent the unit of data, which of the following
devices use ‘set of beads’?ÂSolution
The abacus (plural abaci or abacuses), also called a counting frame, is a calculating tool with a set of beads for counting.
There are two buckets X and Y containing mixture of milk and water in which concentration of milk is (a-9)% and (a+15)%, respectively. They are mixed to...
In what ratio rice at 47 Rs/kg should be mixed with the rice at 28 Rs/kg so that selling mixture at Rs 45 per kg gives the profit of 25% if the quantity...
In what ratio mixtures of 22% concentration of alcohol and 35% concentration of alcohol are to be added so that the resultant mixture will have 30% conc...
In what ratio coffee at 315 Rs/kg should be mixed with the coffee at 355 Rs/kg so that after mixture its rate become 330 Rs/kg if the quantity of 1st ty...
The average age of a group of six children is 8 years. From the group, two children, whose ages were 2 years more and 4 years more than the average age,...
2Kg of sugar at Rs 20 per Kg is mixed with 3 Kg of 2nd type of sugar to get a mixture costing Rs 35 per Kg. Find the price of the costlier sugar ?
A sum of ₹ 62 was divided among 100 students. If each boy got 70 paisa and each girl got 45 paisa. Find the number of boys?
In a class, 60% of the students are boys, and the rest are girls. If 40% of the boys and 50% of the girls passed an exam, what percentage of the total s...
11kg of tea costing Rs. 440 per kg is mixed with 14 kg of tea costing Rs. 360 per kg. The average price per kg of the mixed tea is
