Math Olympiad 5( Week 36 Quiz 7) 2. Consecutive numbers are whole numbers that follow in order such as 2, 3, 4, 5 and 6. There are seven consecutive numbers whose sum is 210. What is the smallest number among the consecutive numbers? 3. If 7 × = 8, what is the value of 400 × ? 4. If 4m = 6, what is the value of 8m − 4? 5. How many two-digit numbers are there in which the tens digit is greater than the ones digit? 6. Consecutive numbers are whole numbers that follow in order such as 2, 3, 4, 5 and 6. There are eight consecutive numbers whose sum is 372. What is the largest number among the consecutive numbers? 7. A pile of coins is consists of nickels, dimes and quarters. The ratio of nickels, dimes and quarters is 2 : 2 : 4 . The pile of coins has a total value of $18.20. How many dimes were there in the change? 8. Find the sum of the counting numbers from 79 to 121 inclusively. In other words, if S = 79 + 80 + 81 + ... + 119 + 120 + 121, find the value of S. 9. 7n is n 7s multiplied together. What is the end digit of 7179? 11. There are equal number of nickels and quarters in my pocket. The value of the nickels is $3.80 less than the value of the quarters. What is the total value of all the nickels and quarters (in dollars)? 12. Jackson has 112 coins with a value of $13.60. The number of dimes is 4 times the number of nickels. The number of quarters is 4 more than the number of nickels. How many quarters does he have? 13. The numbers 2, 4, 6, and 8 are a set of four consecutive even numbers. Suppose the sum of 13 consecutive even numbers is 468. What is the smallest number among these 13 numbers? 14. Jay has a total of 25 coins that consists nickels and quarters with a total value of $3.45. How many of them are nickels? 15. Below is a repeating decimal that the set of digits 58023 repeat after the decimal point endlessly.
0.58023 = 0.580235802358023...
Which digit will fall in the 801st place to the right of the decimal point? |