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Sanya noted the colours of 20 cars in a parking lot (W = white, S = silver, R = red, B = black):
W, S, W, R, B, W, S, W, W, R, S, W, B, W, S, R, W, W, S, W.
How many more white cars are there than silver and red cars together?

Class 7Frequency Tables and Tally MarksData Handling
  • A5
  • B7
  • C2
  • D8

Step-by-Step Solution

Tally: W = 10, S = 5, R = 3, B = 2 (total 20 ✓). Silver + red = 8. White − 8 = 10 − 8 = 2.
Answer: C) 2

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