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 84. What is the smallest number among the consecutive numbers? 3. If 9 × = 6, what is the value of 150 × ? 4. If 2m = 5, what is the value of 6m − 4? 5. How many two-digit numbers are there in which the tens digit is less 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 260. 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 4 : 1 : 2 . The pile of coins has a total value of $5.60. How many dimes were there in the change? 8. Find the sum of the counting numbers from 100 to 144 inclusively. In other words, if S = 100 + 101 + 102 + ... + 142 + 143 + 144, find the value of S. 9. 7n is n 7s multiplied together. What is the end digit of 7150? 11. There are equal number of nickels and quarters in my pocket. The value of the nickels is $2.60 less than the value of the quarters. What is the total value of all the nickels and quarters (in dollars)? 12. Josh has 47 coins with a value of $6.05. The number of dimes is 5 times the number of nickels. The number of quarters is 5 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 9 consecutive even numbers is 450. What is the smallest number among these 9 numbers? 14. Larry has a total of 25 coins that consists nickels and quarters with a total value of $2.45. How many of them are nickels? 15. Below is a repeating decimal that the set of digits 89146 repeat after the decimal point endlessly.
0.89146 = 0.891468914689146...
Which digit will fall in the 802nd place to the right of the decimal point? |