Three 5-Star bars, two Kit Kat bars and one Perk bar cost 145 dollars. Two Kit Kat bars, one 5-Star bar and three Perk bars cost 135 dollars. Find the combined price, in dollars, of one bar of each kind.
Radha has to cut small strips of ribbon of 5 cm each. But after every 3 strips of 5 cm, she cuts a strip of 4 cm mistakenly. If a total roll of 100 cm was cut into small ribbons, how many 5 cm ribbon strips are there?
Harry brought a few marbles to school. He distributed one-third of the marbles among his friends on the bus. He then gave 20 marbles to his classmates. Now he is left with only one-fourth of his marbles. How many marbles did he have at first?
Both fractions refer to his original number of marbles.
Find the value of the digit in the ones place of the following expression: $99\times101\times103\times105\times107-100\times102\times104\times106\times108$.
A number is multiplied by 3 and then 5 is added. The final result is 26. What is the number?
The original options are A. 19; B. 20; C. 18; D. 21; E. 17. This edition keeps the stated result 26. Enter a number rather than an option letter, whether or not it appears among the original options.
Chloe’s current age is a multiple of 6. Next year, her age will be a multiple of 5. She is more than 30 years old and less than 70 years old. Find her age 4 years from now.
Sara’s birthday falls on Friday, 15 August this year. On which day will her birthday fall next year if next year is a leap year? Use the hypothetical year described, not the 2027 edition year.
A rectangle is formed by placing two squares of the same size next to each other. If the perimeter of each square is 60 cm, find the area of the rectangle in square centimetres.
One stack contains 8 coins. The stacks are arranged with 1 stack in the first layer, 2 in the second, and so on. How many coins are needed for 5 layers?
