Find the missing number 7, 14, ?, 28, 35

More from SSC CGL:

• What is the HCF of 12 and 18?
• If the price of sugar increases, the demand for sugar will:
• Find the next number in the series: 2, 6, 12, 20, ?
• Find the synonym of "Abundant":
• What is the antonym of "Benevolent"?
• The term "Fabricate" means: