At 3.40, the hour hand and the minute hand of a clock form an angle of  Choose the correct answer:
A) 378
B) 277
C) 297
D) 267
E) 130

Rationale: sol : use formula θ = ∣ ∣ ∣ 30 h − 112 m ∣ ∣ ∣ θ = | 30 h − 112 m | angle = 30 × 3 – 11 / 2 × 40 = 90 – 220 = 130 ° answer : e
Answer: E