Maths

Question: If 18 kg of berries cost $90, how much will 12 kg cost?A) $45B) $50C) $55D) $60 Solution: Step 1: Find the cost per kg of berries.Cost per kg = 90dollars/18kg = 5dollars/kgStep 2: Use the unitary method to find the cost of 12 kg.Cost of 12 kg = 12kg×5dollars/kg=60dollars​ Our Social Media Presence –https://youtube.com/@rankmadeeasyhttps://www.facebook.com/groups/rankmadeeasyhttps://www.facebook.com/RankMadeEasyhttps://www.instagram.com/rankmadeeasy1https://twitter.com/rankmadeeasy

Question: A plane flying at 750 km/h takes 8 hours to travel from City A to City B. If it encounters a tailwind increasing its speed by 50 km/h, how much time will it take to return?A) 6.5 hoursB) 7 hoursC) 7.5 hoursD) 8 hours Solution: Distance between City A and City B = Speed

Question: Two angles are complementary, and one angle is 40°.What is the measure of the other angle?A. 50°B. 60°C. 70°D. 80° Solution: Complementary angles add up to 90°: Other angle = 90°−40° = 50° Our Social Media Presence –https://youtube.com/@rankmadeeasyhttps://www.facebook.com/groups/rankmadeeasyhttps://www.facebook.com/RankMadeEasyhttps://www.instagram.com/rankmadeeasy1https://twitter.com/rankmadeeasy

Question: A cell phone company offers a plan that costs $30 per month and includes 5 GB of data. Each additional GB of data costs $10. If a customer uses 8 GB in one month, what is their total bill?A) $60B) $70C) $80D) $90 Solution: Cost for the plan:30Cost for the additional data (3 GB):3×10=30Total

Question: Which of the following best describes a bimodal distribution?(1) A distribution with no mode.(2) A distribution with one peak.(3) A distribution with two distinct peaks.(4) A distribution that is symmetric. Solution: A bimodal distribution has two distinct peaks (modes).Correct answer is option 3. Our Social Media Presence –https://youtube.com/@rankmadeeasyhttps://www.facebook.com/groups/rankmadeeasyhttps://www.facebook.com/RankMadeEasyhttps://www.instagram.com/rankmadeeasy1https://twitter.com/rankmadeeasy

Question: Emily bought 3 bags of apples and 4 bags of oranges. Each bag of apples costs $5, and each bag of oranges costs $7. If she spent $43, how many bags of apples did she buy?A) 2 bagsB) 3 bagsC) 4 bagsD) 5 bags Solution: Let the number of bags of apples be x,

Question: The following data shows the scores of a class: 15, 20, 22, 25, 30, 35, 40, 50. What is the interquartile range (IQR)?A) 25B) 20.5C) 15D) 16.5 Solution: First, arrange the data (already sorted).To find Q1:Lower half: 15, 20, 22, 25Q1 = average of 20 and 22 = 21To find Q3:Upper half: 30, 35,

Question: If a plane flies at 600 km/h for 2.5 hours, how far does it travel?A) 1,250 kmB) 1,400 kmC) 1,500 kmD) 1,200 km Solution: Distance = Speed × TimeDistance = 600 km/h × 2.5 hours = 1,500 km Our Social Media Presence –https://youtube.com/@rankmadeeasyhttps://www.facebook.com/groups/rankmadeeasyhttps://www.facebook.com/RankMadeEasyhttps://www.instagram.com/rankmadeeasy1https://twitter.com/rankmadeeasy

Question: A factory produces two types of boxes, one with 56 chocolates and another with 42 chocolates. If the factory wants to package the chocolates into boxes of equal size without any chocolates left over, what is the largest size for each box?A) 6 chocolatesB) 14 chocolatesC) 21 chocolatesD) 28 chocolates Solution: To find the

Question: A bicycle originally costs $240. During a sale, it is discounted by 20%. What is the sale price of the bicycle?A) $180B) $192C) $200D) $210 Solution: Calculate 20% of $240:20⁄100 × 240 = 48Subtract the discount from the original price:240−48=192The sale price is $192. Our Social Media Presence –https://youtube.com/@rankmadeeasyhttps://www.facebook.com/groups/rankmadeeasyhttps://www.facebook.com/RankMadeEasyhttps://www.instagram.com/rankmadeeasy1https://twitter.com/rankmadeeasy